I don't think a change of insoles is necessarily going to make something that uncomfortable feel better. 10 days of riding should break a boot in, imo. Given that uncomfortable feet snowboarding completely blows, I would consider selling them and moving on.
I have been looking at freeride boots this year as well. I have looked at the Solomon F22 & Malamute, and the Ride Insano and RFL's. I am trying Cirrus next, and may look at some of the Burton line if that does not work out.