I wanna order a tremel-no but I'm not sure which one I should get. The edge in my rg550 has a screwed down bar over the springs that hold them in the holes. Obviously the pin stremel-no would require it being inserted in one of the screw, which probably is too big for the pin and is going to damage the threads in the block.
so the second option would be the small clamp. Am I to remove that spring hold down plate to run the clamp version or can I run it on top of the spring hold down plate?
I just googled it, it's called a block lock. I suppose it's not necessary?