I agree that the longer heat times might be an issue with batteries & charging and possibly over heating on a hot day - it would be interesting to see what people thought of it who attended the o0ple race where i think they they ran longer heats ( Craig, Griff & Dave i know attended ) but at least one region are doing 3 leg finals in their regionals as i said in another post - Scotland for example.
If the electrics were to run seperately from Nitros in the future i think that would be an excellent justification for a £10.00 entry and give the meeting a 'bigger' feel.