best tires

[xxspeednplayaxx]

im currently running my xmod with r.s. parts, for my tires im using the soft threads , for me they stick betr than the soft slicks ,however i want tires that stick like gum to the floor, i was wondering what would the best tires to use for the ultimate grip, either soft threads from r.s., modified foam tires (although i dont know how to modfy them) , the Kyosho Team F1 soft Slick tires (and at which degree, note i have no idea on what the various degrees mean), the formula1 competition soft tires or the zspeed competition soft tires... any sugestion would be great, just want you experts $.02

thanks a bunch
~M1K3