After a while all purples will start dropping at 385. Once that happens do some more stuff with your main and save those pieces for infusion on your alts. Buy 3 of coins and just always have one active so when an exotic drops it's max light. Save duplicates for infusion. Once you're 385 with your main and have several 385 pieces for infusion, start your next character. Just remember in order to experience them all, you'll need to do all of that before September. 😁