Are you tying on non-collar jigs??? on some they're really flat others have a big top then angled down. It's really practice and more practice and a big X2 with Attica, feather prep and lots of practice - some of the smaller ones the stems are soft enough that you can leave them in and tie in as is, it's those thick stemmed ones you gotta watch.
Just keep practicing buddy!!!!!!!!! I get in a stretch where all of them look great, and then I get a bad streak going. Hang in there.