where did you get yours?? i seen a few today, buuuut.,(thinking some are 3 roller set tho)...... i did try equiv. to 6.5 wit stock spring, seem a bit better at take off, good on flats, worried about all the dam mtns. around here tho. still drops a bit on hills(many around here).. i also tried 8.5 w/1500 main and flys, seems fairly good also, hills better, top seems ok, may need 9s like shaka suggested.....imagine that...lmao...(nobody around here has any either)...