As I said mine has a YS53. Now that ain't much bigger than an OS52 but it's bunchs more power. I would call the plane overpowered but that's the way I like them. I required no weight but after a couple of tail heavy flights I put a brass spinner nut on it.

I don't think the covering problem is Tower, I think it's Kyosho. They like sticky back paper and I doubt it can be matched. I couldn't even match the white

Denis