I love the BTMS idea. Too heavy for me except in teeny tiny bits!
I tried adding polyquat-4 to protein-ed FSG. The first use was WOW, the second and third were less wow, so probably causing build-up.
Today I added acrylates copolymer to FSG. I think I may like this better.
Last night I used a mix of hops, horsetail, chamomile, and nettles in a PT and it is always a really nice herbal mix for adding body!
Great idea for a thread, Missbanjo. I'll be back to see what creative things you all are up to!