Mike, I believe you have made a good decision. If you would like to get a preview of the inner workings of the G0690 check out these two threads. I received my back in the early spring and promptly threw it against a tree to test it.
Check it out. Lots of inside details of the G0690
http://www.sawmillcreek.org/showthread.php?t=135780
http://www.sawmillcreek.org/showthread.php?t=136211