What kind of boat?

Transom mount motors are too short for a lot of V-bottoms.

I used a transom TM near the front of my 14' Alumacraft V bottom for a couple months. It did work, I caught a lot fish trolling with it in the summer, but the motor did not fold up all the way horizontal because of the angle on the gunnels and was in the way when not in use. It would only be underwater if I was sitting in the front of the boat, barely long enough.

I took it off and installed a front casting deck with a true foot control TM a few months ago. I put the old trolling motor on the transom if I do any long line trolling.

If you have casting decks, you may consider a hand control bow mount trolling motor with a quick change mount on both boats. A bow mount is much easier to deal with when not using it, and they have a longer shaft.

If your mount is very far back on the gunnels, I'd be concerned about the boat just wanting to go in circles (paddling on one side of a canoe).