I use q21 with limo. Lately however I've been basing the acetate goo with washing soda afterwards. A whole lot smoother and more betterer after that ime. Also I've begun salting with FASW rather than white vinegar...so yeah, I've been experimenting with the q21 amor fati teks.
I'd much rather loose a small bit of limo than use a petroleum product to extract dmt. By the fourth limo pull, I'm happy that I got the extreme majority of spice out of the plant, and am really only loosing the limo. But if I am leaving behind some spice I'll just have to consider that an offering, a sacrifice made in humble awe, for the spice I love and the planet I love.
My skills, knowledge and experience are all very limited, so I answer this question with all humbleness, but to me, this feel right.