Looking to save a little money running 2 karts next year. How low can you get the duro down on a set of Unillis and what would it take. I got my vega yellows down in the 30's and the handling is great all night. Can I get that out of Unillis? Was thinking of buying somebodys used vega yellows with only a few laps on them if I can find some. Any advise? Thanks.