Started on our IO-360 angle valve valve wobble test today and used our new ATS spring compressor. The unit is adjustable but we spent at least an hour on the first valve trying to get it adjusted where it would compress the spring evenly (i.e. not cocked) so the keepers would come out. We finally managed to get the springs off but then the adjustment that made it right for getting the keepers out was completely wrong for compressing the spring back to get the keepers back in. Think I'm going to send these back and get a "Valve Wizard" Am I doing something wrong?