the few there are after the Jan USPS increases/changes

I would think the commercial plus shipping discounts (the few there are after the Jan USPS increases/changes), should kick in immediately.

20% TRS discounts don't show up until invoice time and remember all the hoops must be satisfied - 1 day handling, returns, etc.

I'm a bronzy TRS too, but it doesn't do much for me. very little I've been selling uses commercial plus shipping (regional box discount went away in Jan), I don't take returns on 99% of sales so only gvet about 50¢ per month discount, plain TRS gets not visible badge to possible boost buyer confidence, and based on views and STRs search ranking can't be better than non-TRS. If it goes away in Aug, I won't be missing much (but will have a vauge feeling of failure).

Don't mean to rain on your parade though. Congrats on TRS!