Yeah, I hear ya dude!! Im gonna try a backplate off of a Mach .26. They take the same sulliven roto start, and basically have what looks to be almost identical components. I hope it works out. Like I said Im not knocking xtm products, but i encounterd this same issue with the 24.7 even years ago. Lack of that part that is. I didn't own xtm at that time but was looking for a backplate for someone else. I like variety, but im beginning to believe stay with what is popular because you know you can find parts for it.
thanks