I can speak to the back-half: Switched rear tire from Agarro to Martello last season as CO trails get blown-out in the dry summer. Lots of deep loose-over-hard starts to pile up, and things get sketchy around here. I loved the Agarro for what it is... shockingly grippy for how fast it is. But, it couldn't hold it in the deeper stuff - nor on the really steep technical climbs.Anyone compared a Martello F/R to an Agarro F/R set-up? For whatever reasons the Martello doesn't have it's own thread. I am curious if it's just not as well liked. It doesn't have the fancy ramping that the Mazza and Agarro do, but it at least basically meets it's stated width.
Putting the Martello on the rear was a whole new level of traction (climbing/breaking) - but most interestingly, cornered much more solidly. It still has a 'predictable' breakaway... but it takes a lot more to break loose (vs the Agarro). Yes, Martello is definitely slower - but it's not a dealbreaker. I think I'd care more on long epics than most of my shorter trail rides, so might switch for that. Also, I'm planning a trip to Moab soon, and will likely switch to Agarro for the rear as it's awesome on rock.
SUNS_PSD says that the Martello is one of his fav front tires of all time (and he's done so many). As far as I can tell, he does a lot of rocky/dry and it's awesome there and on hardback up front. (Again, for the CO Front Range, I needed deeper traction in the loose, and put Mazza up front and have been very happy with it!).
Yeah - Martello really needs it's own thread!!