I've been brewing since 98 back when aroma therapy kits were online to convert fina pellet carts into tren. In regards to pip everyone is different some people react to high % of BB over 20, and others can't use anything with e.o. or mct. I prefer safflower oil over any cotton seed or grape seed oil. I always shoot for 1-2% ba and minimal bb to hold hormone in suspension without crashing, but test e at 4-500 per ml is doable with little pip if you know what your doing and test C around 300 but sometimes you got to play with it because depending on ambient temp (storage) it can crash too. Once you start really getting good you can create some masterpieces lol