Zerodefect, that is exactly why I run the speed instead of the VPSEC. It does have an initial cost of about $100 more, but......I can buy a speed ($400) run 7-8 gallons on it replaceing the rod at 4 gallons ($35) then rebuild it ($135) and run it 5-6 more. So, that is 12-14 gallons (If not more) run time for $570, looking at it that way I have a top end motor, great runtime, and it would take probably 3 VSPEC's to get the same runtime, but at a much higher cost. And yes, I have done it, those are the prices at my LHS (No I am not sponsored).