Hey Taz,
I have been using a b67 on my ICT, and I love it. A friend borrowed it for a while, along with my Flyer, and ended up going with a B67 for himself as well. I found the springing wasn't bad at all, and that the shorter nose (in comparison to the Flyer) was even more comfortable riding the fat bike in both snow and on trail.
Good luck with your saddle!