I would recomend just changing out the guts for a hl smoke and sound package. i cant see that not working out.
I have a set ordered from Mato, so I will try to install them after the tank is redone...at least until I can get my hand on some Tamiya guts. My goal is to have a fairly accurate model that I can battle with and I prefer the TBU because all I have to do is mount it and plug it in.
