Park Pickle 153 at 180 lbs? Yea... not surprised that board is a little squirrelly for you.
I'm 5'9 ~155 lbs size 8 boots and I ride the Proto CT 154.
157 Proto CT will work for what you want to do. If you are doing more freeriding/treeriding ... than butter/jibs... might consider the Cobra - especially if you still have the Park Pickle.
Thanks man, I appreciate the help.
I pulled the trigger on the 157, selling the pickle.
I just picked up a 158 Proto... I was riding a 154 Evo at 200 to 210 pounds depending on my gym rat time of year. Same problem you had, 154 was too small for my weight and got squirrelly at times. I had to go bigger.