KT22
I have been riding this board style for 5 years. No problem. Mines 162w. I'll be riding this, their awesymetrical and pinner this year. The owner of this company isn't a small man either, probably 250-260.... I don't ride slow and have zero problems in deep light powder. Unlike some/most of the posters and forum members, I live what your asking about,big weight, and will ride over 150 days this year again....
A lot will be with riding technique, I make up for float by hauling ass in deep pow and not stopping. When you want to hold an edge on groom or hard pack you have to really dig in and let your knees, ankles and other joints absorb the imperfections of the mtn. You have to be really strong in your legs to compensate for your mass. Do not let yourself get out of control, wipeouts are a show and you can seriously hurt someone even in a low speed impact. Your inertia is going to be way more than the average joe..... I tone it down a lot on crowded days and on Icey slopes. Stopping all of this is way harder than a 150 lb little dude.