I'm using them on my fronts (285 30 18) with the older models on back (315 35 17) and am very pleased with them. I've used them for Solo 2 and also on the track. I don't have anything to compare them to, but they do feel really grippy and predictable. I previously used BFG R1s in a smaller size and there is no comparison.463supra said:Ecsta V700. I was talking to one of the local guys that autox's and solo 2's and he had them on his car for this past autox. I was just wondering if anybody on here had tried them?