For me when going up in tower i rarely get a chance time. While on Ex sometime i get them one after another lol, or at least few time in 10 - 20 spins. I'm like why would i even use radars if so many.
Also i'm kind of spamming all shakes from boxes or some of my stored namins, so getting the 100 - 300 from EX prize few times per day.
Setting a goal on how much u wanna do in that day helps too. Like first day i slacked ( did open some cases though) and only had 1,5 k trophies. Next day i did 8 or 9 k to be back on track.

Indeed. I agree with Neko - when i go up the levels i have Trophy Chance really rare - usually one time per severall stages/rerolls if failed on Choice of Fate, and i get mostly 5/10 or even 0 trophy cards from it. 30 or 50 is a big luck, while i barely saw 300s more than once per Phase 1 and 2 until getting to Bonus Stage and 100s more than once a day (saw, among the others - not picked them). While on the Bonus Stage i get Trophy Times like on every 3rd roll, and they mostly have 4/6 silver cards (30/50) and 100s very often, and i sometimes even catch 300s even without Radars. It also has alot of Boss fights, which means alot of silver and some gold keys and alot of corresponding cases. While Radars are most useful on normal stages, to keep the Trophy Chance and Boss Encounters at a decent rate. But my biggest mistake is, probably, the fact that i save Radars until i complete my Daily Missions. (since they prevent me from getting triplets of Exp and Pero for reward SR WCs for 18 of the same kind per day). Guess i've found what's messing up my 50k achievement.
Also, as mentioned before - when you lose on Choice of Fate you get "Consolation rewards" instead of "Advancement rewards" - which are much less valuable, and lose extra STA to go through the same area again and again - while STA cost and number of rolls to get to the Choice of Fate is different on different stages - so, sometimes, it's just a watse of extra STA, "running on one place", like a threadmill - you exhaust your resources, but not moving forward. Of course, sometimes i get the correct card on Choice of Fate even if there was only 2 or even 1 correct cards from the first or second try, but sometimes i get really stuck on one stage for like 10 tries/re-rolls! I don't think it is worthy to replay one stage so many times. Without glasses on 1 correct answer times i could easily fail to unlock all story chapters during last 2 Gambits, seriously. And i don't wat that for sure. Even more than losing that 50k card (i can still view the card on the Wiki later, but there is no way to watch/read the Gambit storyline outside of the game yet).
My other mistake is that i used to waste all the glasses/radars at the end of Gambits (even fed them to Kurito without other pricy items to get special cards) because i thought they vanish like Shakes/Burgers on Event's end. I guess that's why i lost the last two 50k cards.

IF you use radars, it won't matter whether the base rate is high or low. You will get chance time every time.

10 glasses is somewhere between 1 and 3000 trophies x your multiplier. Think about that.

My multiplier is usually around 1.5, so yeah... Not much difference. And 300 trophies cards are very rare for me. Even with Glasses there could be 100 trophies card or even just 6 silver cards - 4-5 with 50 and 1 -2 with 30. While sucessfull answer during Choice of Fate sometimes give 300 Trophies too.
As for the Radars - they just make every roll "lucky" - that's not always Trophy Chance - they also trigger Boss Encounters quite often aswell.
But on Bonus Stages the base chance of getting a Boss Encouter or Tropphy Chance is high enough to get them almost every second time you roll the stage, even without Radars - so you almost don't need them there - while on normal stages there are alot of "empty" rolls and normal "triplets" of Exp, Pero, and Gifts, so you will get much more profit from using Radars there, and on Bonus STage you can even get not bad amount of 300s and 100s even without Radars and Glasses. So Glasses are of a really big value to save them for Trophy Chance _only_ if your multiplier is very high - for players with only N SECs they are almost of the same value if used on Step-Upped Trophy Chance or on 1 O Choice of Fate, since 300 or 368 Trophies is not such a big difference.

Incidentally, if you use a radar and do NOT get a trophy chance or a boss fight, you don't 'spend' the radar. It's only spent if you get either a trophy chance or a boss.

i think that happens only on the last rolls in the room, where you can't get Trophy Chance or a Boss Fight because you always get a Choice of Fate after this last roll. So the Radar auto-disables for the last roll in the room to let a normal roll to be performed to trigger Choice of Fate afterwards.

Originally Posted by Vic47

i think that happens only on the last rolls in the room, where you can't get Trophy Chance or a Boss Fight because you always get a Choice of Fate after this last roll. So the Radar auto-disables for the last roll in the room to let a normal roll to be performed to trigger Choice of Fate afterwards.

Not always. A few times I got a regular spin of junk. When that happens, you are not penalized. Your radar count stays the same.