Wicked deal, I'd resell the 260 and use the money to find a 488 or 490 then your stable will be happy. 757 super awesome saw, I've got the power pro filter kit on my 577 (same setup as stock 757) and I haven't ever had to do more than shake out the precleaner. 757 is happiest with 24" bar, best balance and awesome power per tooth.