Brake pads

[Anarch]

I replaced the stock pads (they still had some life in them, but were glazed over) with Nissin NS (semi metalic) - I gave them a while to bed in, but I just dislike them.


I've been searching the forum for opinions on brake pads and it seems that SBS Street Excel get the best scores - but I have a few questions to the users -

Roughly how long do they last and how are they on the stock rotors (I'm not sure whether the original rotors are stainless steel).
In two weeks I'll be going for a trip with a pillion to Alps - how do the SBS deal with long term braking (lots of heat)

Thanks