A few ants have been using the Giant Cod 2.4ghz gear, there haven't been all that many issues reported with them - other than a slight issue with keeping transmitters seperate from each other - http://www.robotwars101.org/phpBB/viewt ... 75&start=0 has more info if you need it, Peter Waller's been testing them.

As for 'not being ready' for expensive radio systems...to be honest that's a bit rubbish, I had a DX7 before I'd actually got an antweight working properly and it's served me well, he's free to get whatever system he would like to get that satisfies the rules.