In my opinion 10+1 Draws > Yolo Single Pulls.
If you want a specific Spot Light Girl hoard FGs for her (lets say 100 Gems) cause you have a much higher Chance to get the Girl you want thanks to the Bonus Draw...and since you are a F2Player: 5* Ticket Gacha (50Gems) > Single Pulls
You like the Dragon Fruit Girl right? Start Hoarding Gems for her cause she arrives soon...
The only Person i know who has really good luck with Single Pulls is...yeah you know it...
Sure if you hoard FGs you can't participate in every single Priority Gacha but you have more attempts to get a Girl you really like.