Meh I say get some highroller 60a, I've had 60a maxxpro and 42a super tackys but to be honest I didn't notice any difference in grip and the maxxpros lasted a bit longer but not that much really (1 months and a bit). I wouldn't go for a 2.7 'cos a 26" quite dense compound, 2 ply 2.7 is gonna be heavy, like 1.5 Kgs or something. Get a 2.5.