What type of front rack are you using, I adapted my front rack mount that used the bridge hole on the forks to clear the brakes, but ultimately i got tired of the travel agents but as you said they wont be needed. Is your LHT 700c or 26" i think alot of the problems i had where because i run 26ers with a 1.5 tire which are "tall" plus my brake arms where only 95mm all in all though with my setup the canti's work better, which is obviously a my case scenario,