More reliable elevation units in the Taigen tanks. I've got three that have died again. I'm not going to replace them for the third time. Tamiya electronics that aren't so bulky. Admittedly, I haven't seen the electronics in the newer Tamiya offerings, just the WWII electronics. What happened to Heng Long IR. I see a combo airsoft and IR, but where is the barrel recoil for their IR. The sounds seem better in their 6.0 and 6.1 but not up to Tamiya. Yes, I know, there is a very large price difference between the two and you get what you pay for. Maybe just expecting too much I guess. What happened to the ASP board, that seemed to be headed in the right direction and now out of business?