Joe, I have the same saw. I don't have a problem reaching back to loosen/tighten the tension. I did not like using the tee handle to undo/redo the upper blade fastener so I replaced the set screw with a knob. Here is a post about changing it.
http://www.scrollsawvillage.com/topic/13524-blade-wobble-craftsman/
I can change to a new hole in a project including reducing tension, undoing top blade clamp, putting blade through the next hole, redoing the blade clamp, and tightening the tension all in a matter of seconds. Since I'm only a hobbyist I don't see the need to spend $$$ to get a quick release tension clamp. I'll leave thst to the pros.
BTW you'll have to scroll down through the post to see the fix.