So I've got two level 40 silvers, Oh Mai Valentine and Big Top Cerebella, each with maxed stats (except the cooldowns, but whatever), and I'm wondering if I should evolve them now or wait. I've evolved a couple bronzes to silver, and each time I leveled my sacrifices to 30 to milk out the skill points. But as silver Valentines and Cerebellas go, none of the ones I'm not holding on to are higher than level 15, so I'd be missing out on ~200 skill points by not leveling those to 40 before sacrificing them. But oh my God, it takes so long to level silvers to 40! Most my other silvers I'm working on are only up to 25, let alone the sacrifices. Should I just be patient and wait? I want to get them evolved so I can quickly get them to overpower my other golds (who are all ~15-20 with only special skill tree progress) to carry prize fights better, but is it worth losing those skill points?