Coliseum rewards: A Modest Proposal

I am struggling to understand how this has happened to you, MasterSeedy​ . Where have you reached against each of the 4 bosses? 

One thing I’m wondering about is the impact of taking some toons much further than others on your ability to level up the later Marquee units. 

I spread out my upgrade materials on all the earlier units, and from memory this always left me in a position to take the latest Marquee up to around the same level as the others immediately on unlocking them. I’m wondering if there’s some mechanism that allows players to level their newest marquee to the level of their lowest era character, which would mean my approach was optimal? And levelling one era unit much higher than another was counterproductive? 

I reached t8 on all bosses before Vader arrived, and had reached it on the two single target bosses before Barriss arrived. When you clear 40% on t7 - on all bosses - there’s no more materials coming from reward boxes, so it seems odd that I’ve been able to take all era characters north of Lv70 without spending anything. 

I repeat my assertion that I’ve spent absolutely no money or crystals on any upgrade materials throughout this era. Hopefully you’ll take that assertion in good faith, given a long history of mutual forum respect between us!