Great video (as always from FortNine). One thing I'd add is to consider the performance of the bike - he says PR4s can squirm under acceleration but I've never encountered that. I guess the Versys 650 just doesn't have that much grunt to lay down, or I ride like a wuss (tho FWIW I've tracked these tires and never had issues even during full-throttle corner exits). Agree with all other points: phenomenal in the wet and cold but does tend to scalp during wear.
2015 Versys 650