Quote Originally Posted by Unregistered View Post
The way you describe the philosophy/approach strikes me as boiling down to:
Work on all the SSRs you can. Regardless of monogrid or rainbow, the grid for X element team will have corresponding X element SSR weapons. That is the base level of investment present in either approach.
The difference between rainbow and a monogrid for a given element is replacing the off-element SSR with an on element SR with assault.

So, in more generic form, it basically looks like this:
For an investment cost of 34,953 experience points and the equivalent of 190 R's (to max out a new SR),
you lose the difference in atk between the incoming new SR and the outgoing off-element SSR (usually in the 300-400 range?), while gaining 13% to assault.
The question is whether or not you the player finds that additional investment to be worth it, as (eventually) an SR gets replaced with an on-element SSR.

Of course, there's always different levels of investments for these temp weapons. Exp-wise, for an SR, it's 4,123 exp to get to lv 40, 10,168 exp to get to lv 55, and 20,778 exp to get to lv 70.
6 R's will get an SR to skill lv 4 (+5% assault), or 31 R's for skill lv 8 (+7% assault), or 91 R's for skill lv 14 (+10%) assault.

So the question evolves into figuring how much additional investment is needed before you start making gains, and then the followup to that would be to evaluate the investment:gain ratio and decide on what you're happy with.
Pretty much. Corresponding element SSR are your most valuable asset no matter your build and the long term goal is to have a full grid of them. There might be an approach that requires less investment in the short term for beginner players, but I tend to prioritize the long term and end game.