Yeah, I like the engine to cool for a bit, plus being courteous to other fliers at the field etc, not really back to back.  I guess my biggest point was that my support system (other guys at my fields that I fly with) are all gas or glow fliers.  E setups are great, and I see the benefits, but I can't wait for contest weekends for help  Well, that and the 10 gallons of fuel still in my basement......