Billy Goat
WKR
Couldn't tell you. I've never actually owned an APA, I'm just very intrigued by them. I was real close to ordering an APA Mamba 33 last spring but came across a Hoyt Helix at a price too good to pass up and couldn't justify buying both. I could see how the APA cam lock pin might be prone to mar the finish on the limbs, but I think I could live with that if it meant being able to change string/cables, install a peep, and yoke tune without a press.
I get the sense that you can mess with them without a press, but likely would still want one for them. I know I'd feel a lot safer using a press, I watched them yoke tuning by pushing one side of a static yoke and putting twists into another. Thinking the draw weight was turned down.
I have been told the cams are very sensitive in tuning, but I don't know.