I grow outside only, so May-October for me) and last year I reluctantly used h202 because of some slight PM. After doing so, I realized my reluctance had no reasonable basis and was totally psychological. In fact, with the small amount of h202 added, it washed the herb superbly, got rid of pm, bugs, etc. and with zero signs of tric loss or dmg. Of course, used several rinses after. Herb came out fantastic and we've been enjoying it all year and still have a bunch holding well in sealed jars with Boveda packs.
I mention this because as you wrote, I plan to skip the lemon juice/Baking Soda entirely this year and simply use h202/water wash with 2-3 just water rinses after. Just be sure to change out to a new h202 wash once you see the rinse bucket start getting dirty. Unless others have some insight I'm missing, I find the h202 mixture cleans even better than the juice/soda and is a great preventive measure in-case of unseen pm. I think the juice/soda after may be overkill and find the h202 benign and highly effective. Also, not sure why others use "warm or warmer water. Room temperature, or say 70 degrees about, seems more than adequate. I use the water that comes right out of the hose outside and works really well. In October here, it's about the right temp. too and fortunately, it's very good water.
Love this thread to death. I'm so grateful for it.
Zafu