Well I gave up on my sportwerks .26... Just to many problems getting it to idle properly....So I went to Als and picked up a OS .21 RG....130$ Im glad i did this engine so far even through break in has been very nice after...3 tanks i leaned out the slow jet and man does this thing idle great! nice and low. I thought since i wasnt spending 300$ i might be getting a wimpy engine but from what i can see so far it very potent...with a powerband thats more variable than the sportwerks has. So this being my first OS im very impressed! Im really considering the TM for my revo. If anyone wants my .26 $40 and it ures it has very little run time and needs a advanced tuner.... (which im not)