I wouldn't say its tedious, but definitely going to want to use a stall not a urinal. I fold the portion of sleeve that connects to the vaccum bell up over the top of the bell and leave the sleeve that I use on my penis on since I fit it to just below my glans.
That releases the vacuum within a few seconds, then once done peeing I can reinsert and fold back down the other sleeve and reapply some vaccum pretty quick.