mostly if your going to put it up for a week, run out the fuel, then put a little oil in the engine
RTR vs. the Pro, the Pro has allot more carbon fiber where the RTR has a cheap aluminum, and a 7075 chassis, better tuned pipe, but no engine/radio, granted the RTRs radio is kinda.... junky but the .247 is hella fun heh the PRO overall is a much better value, the hop ups alone cost more than the buggy does
and as for metal geared 2-speed, there are a couple rumors that XTM may release a set but no official word yet [&o]