[dtw]

I really feel that the pins are just an assembly aid for spinning the motor during top-end build-up. They shouldn't be a significant emphasis during the timing process. Also, keep in mind, that whatever the slop is at the pin, will cause timing measurements to vary depending on different cams, or even various positions on the same cam. Good old high school algebra, rise over run, y = f(x), and a higher coefficient (ie, more aggressive cam) will translate into a wider range of 'slop' in the pin. But honestly, I'm still an amateur - but I've timed a LOT of 911 engines with complete disregard for what the pin was doing. Stop emphasizing it. Focus on what the timing should be. With the proper touch, you shouldn't have significant timing change when torquing the cams. Alternately, if you practice enough that you realize you are getting .05 of movement when torquing, just factor that into your initial setting.

After several years of watching this forum, one thing I can take away is that people almost always tend to over-think cam timing. It is what it is. Pins are for maintaining rough-time while you build-up. Understand what the cam is doing vs. the crank when you set time. Obtain the lift you want, torque it, clear it, and forget it. It isn't rocket science.

Sorry if this comes off as a rant.