Don't go too far. You have to remember the end user, and we are a simple lot. I don't want to have to spend hours programming in stuff, only to have it as a disadvantage out on the battlefield, when not many others have it. IF David's DBC had a decent sound card option that would replace the stock sounds on a Heng Long it would be golden. Lose the DIY and sell the boards stuffed and ready for installation, and I think you would sell a lot of them. I don't think people are looking for much more then that. Maybe a random destruct that could knock out a tank in one shot, just to throw in some luck might be nice. Sometimes a lucky shot would take out a tank. You know if a Sherman lobbed a shell at a Tiger and it just happend to go down the barrel to the breach and set off a loaded 88, it would have disasterous effects on the Tiger!!!!