Call burton and ask them for some prophecy foot pads, they're lighter and will not collect ice.
For the highback, I ripped off the first layer of rubber ..... The black piece. It was starting to come off and I had got another highback from burton because of it. However once I thought about it I decided to just rip the first layer off leaving just the thin orange layer.
It didn't solve the problem 100% but it did help. Also, when ice does build up use the ratchet to scrape it off. Works great.
I also ordered extra ratchets from burton and just carry one with me in case I break one scraping ice, which is very unlikely.