I realize there have been numerous threads on this forum with regards to brakes, but I would like opinions on two simple questions.
1) What kind of braking performance can one realistically expect from cantilever or linear pull rim brakes with a 300 lb team? I have seen references on this forum to being able to lock up the rear wheel, but the braking performance on my Burley Duet has never approached that. It originally had Tektro mini-V's but I have replaced the back brake with a Shimano LX linear pull and a TA. This arrangement is reasonably stiff, I can exert a lot of handle force without pulling the handle to the bar, but the braking performance is not what I would hope for if the situation was dire.
2) What type and style of pads work best? I see a lot of references to both KoolStop salmon pads and Swiss Stop green pads. Cartridge pads are obviously a lot more convenient to replace, but to they work as well as the one-piece pads? All of the V/Canti threaded post cartridges seem to be of the sort that have the post position offset towards the forward end of the pad, but some of the one-piece threaded post pads have the post centered. Does this seem to make any difference?
I should add that we live in Seattle which means that we do a lot of hills, it is frequently wet, and the roads get sanded in the winter. This combination is very hard on both rims and pads.
Thanks in advance for advice.