You missed my point but no worries.. I was saying if the Cannon can withstand the cast (I use 210g+bait too on the winter rod) then it can withstand pulling for a break and you can safely forget the glove. As long as you have decent tape.
While I'm replying to you, I think offsetting the Cannon very slightly to the side stops slippage by allowing you to get your index finger further around the lever. (I can't call that part the trigger now as Den/poledark's product is the Trigger!)
I have to say I think both types shown in the above vids are mounted further forward than the line roller. The Trigger I suppose needs to be placed optimally for your thumb, but the Cannon can certainly be placed further back so that the bail arm opens smoothly without catching on the line. Not actually hard to pull the line back but a minor faff until you get used to if. This is something you have to put up with anyway on size 4000 and smaller reels anyway since there's a limit to how far back you can tape it (unless you don't mind re-applying the tape each session).
There are two ways to pull for a break.. Beach style with the rod pointed at the snag, using the line immediately exiting the reel onto the Cannon or Trigger; and Boat/rock style if you don't have room to point the rod, using the line outside the rod tip. I will try to get a photo in here of my Cannon with trimmed down lever /4000 reel/light rod.
Taking photos with one hand is only semi tricky which I think proves the usefulness of these devices! Only a two litre 4.4lb weight shown here but it shows how I'm holding the full weight one handed and no strain on reel or rod and no risk to fingers, free hand is free to wind in or take photos.

(the rubber band was just useful to set up the photo but I think .. Yep I can support this weight using only the band!)
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