RE: Upgrading electronics
I have one prototype board that you can add Benedini sound to stock HL electronics. Trouble is I was getting phantom signals that would radonmly play battle sounds, and I never could get it figured out. If you just wanted great engine sounds this board was fine, but when you loaded up the other addresses with sounds, that is one the trouble started, soi I focused on working with David to figure out something with the DBC3..
The nice thing is the DBC3 plays just like a DBC2 so you get all the IR, momentum and recoil blocking features. Then later you can added the sound card to give you the Benedini experience.
Lots of options out there, but unfortunatley all of them cost you more then a Heng Long tank.
Yes you do need a DBC2 or 3 + a hobby radio to make use of the Sabre tooth option