Works Swing Frame
Palmer Micro Rock
I've shot other people's cockers and I still prefer my Works frame. The springs in this thing are perfect and the pull is fairly light. Recently I was considering getting an E-Blade but I just couldn't take off my Works Frame. I can shoot fast enough with it and once you get used to it short stroking rarely ever happens. The tech guy at the local store set up the trigger pull itself so I didn't have to mess with the adjusting screws, but it's always nice to be able to adjust the pull if I have to. Right now it's probably the fastest non-electric cocker at the local field. If you get the Palmer Micro Rock after this it really helps your ROF for some reason.
When I first got it I was trying to fire too fast, so therefore I was short stroking and chopping balls. Once I practiced enough and calmed down I don't have a problem with it anymore. Also, something with my actuating rod not matching up well with the frame (since the frame was designed for a Works cocker and not an STO) caused my 3-way to leak everynow and then, but only in cold weather and not even every time. I consider this to be minor and didn't effect the performance in any way.
Get it for your cocker. My friend has a black magic with the new WGP hinge frame and he's going to get the Works after shooting my cocker. There are no problems with this frame it just rips. It's probably one of the first things you should get for a stock cocker.