Better off just to do base in grapeseed oil. Acetate definitely does hurt, prop can be made painless but it's not easy. There is nothing magical about acetate and there is no need to do it every day
I guess it can be painful for some. I do it in my tris and delts once in awhile I get a little bite. Mine actually came crashed. It crashes easy. It arrived in the dead of winter. I had too cook them in a low boil for 30 minutes. They all went back into suspension.
I like it better then prop. I usually stick myself ed or eod.
I could tell it was potent stuff because each bottle had a real nice amount of crystals at the bottom when it crashed.