glad to offer feedback... your list is great.
that makes sense to go with a lighter bag and keep the DI.
for a compactor bag I have been using a brand called "homelife". They come in a box of 10 so you won't be stuck with a lifetime supply, just 1/2 life. I got them at a Jewel-Osco but the company that owns them also owns according to their website:
ACME®, ALBERTSONS®, bigg's®, BRISTOL FARMS®, CUB®, FARM FRESH®, HORNBACHER'S®, JEWEL-OSCO®, SHAW'S/STAR MARKET®, SHOP ‘N SAVE® and SHOPPERS