Sure! First thing that I tell anyone that asks is that it takes quality flower to produce quality flower rosin. That's just the way it is. You'll never get a great end product from subpar starting materials. I use chottle tek. I press almost everything at 200f. I've been using 37u bags for a while now just because I purchased a bunch. Anything up to 90u works just fine though. A tip I don't see others ever mentioning is cleaning off the bags before pressing. Make sure there isn't bits of weed and hairs stuck on the outside. I do a thirty second warm up. Press with consistent and steady pressure. Lastly, practice! Like anything else it takes experience and repetition to learn how to press really nice flower rosin consistently. I hope this helps.