Joe, Your not understanding how these compressors work. They squeeze (compress)
the spring as an individual unit. You do not press against the shock tower or any part
of the suspension. Hopefully you did not open up the upper shock mounting hole to
the point where the shock rubbers won't fit and compress properly when installed.
The best I can recommend is go to Youtube and search the compressor part numbers
for each style to get a visual. Also search for the tool Scott uses as it's very good also.
I would not use the Powerbuilt for the reason you discovered. I tried one years ago. It
won't keep the hooks in proper contact with the coils. The type I use with the fork
(as you called it) makes up for that evenly distributing the stress on the 2 hooks. If you
don't understand what I'm trying to convey I'll see if I can create a drawing for you.
Edit: You're making me nervous because of the safety involved.
Here's a video on the OEM tool.
27035 OEMTOOLSâ„˘ Coil Spring Compressor - YouTube