Yep, my gaurd is on my saw unless I am using the tennoning jig, crosscut sled or dadoing. I timed how long it takes to remove it including walking over to the bench to get a screwdriver and a wrench. It was 50 seconds. It took slightly longer to put it back on including the same walk to the bench at 1min 10 seconds. I wasn't in a hurry and the rear bolt on my unisaw is under my outfeed table.
~1 min is well worth the safety it provides. I have never wished I didn't have the gaurd on that there have been times I wished it was.
Jeff Sudmeier
"It's not the quality of the tool being used, it's the skills of the craftsman using the tool that really matter. Unfortunately, I don't have high quality in either"