I've made 200 km's on one day with my af1, when i got back i didn't have any pain, blisters or anything... I wasn't even tired
the saddle is comfortable, the position is much better for your back (more upright), and it's just more of a touringbike than a sportsbike... RS50's are more sportsbikes, the reason why you had a soar wrist was probably because you had your oil-pump connected... i've shut mine down because the throttle becomes much lighter and more comfortable