For the type of riding you guys do, I don't see any need for Disc brakes, Liquid cooling or long travel suspensions.
They run ISDE's through areas I ride, so not sure wtf this is referring to, post vids of ur area (I can bench press 1000 pounds, no really I can - not trying to be insulting here, but I see a lot of paper tiger talk on message boards). Drum brakes are a disadvantage a lot of the time b/c you have to ride more cautiously and slower in dangerous areas.
Of course, I don't trust any brakes, I've had BOTH disc and drum brakes go completely out on me, so I always ride a bit cautiously since no one pays me to ride and I have to make it to work on Monday
I had a cable break unknowningly, luckly I was just on a hill when I grabbed my front brake (yes, disc brakes) and found it had all the fluid run out b/c the cable snapped near the caliper.
I had a bolt break and snap off the rear brake rod on drum brakes, going down the road, luckily wasn't fast and found I was missing rear brakes!
LC is another thing I worry about, a friend of mine blew his bike up in the woods when a hose clamp loosened and leaked out unknowingly and his bike just blew up without warning.
Air cooling tho always have to keep an eye out on hot days and make sure do not overheat. Of course, I've had friends LC bikes overheat from them riding too slow in single track, that fan you can get for the rads is a good idea b/c still need air flow thru the rads to cool the bike down.
Maicos on the Edge