Marko
Try moving your feet some while paddling. I too use to get cramps and numbness on my 2-3 hour paddles. I started to roll the board, do some kickturns, shuffle the feet and walk a bit. Wiggle your toes and get on your tippy toes some You need to get the blood flowing to the feet. The tacky sticky pint deck may be forcing you to move a bit ,thus your not cramping up. The padded SUP feels so good and soft that you dont move as much or at all Then you maybe cramping. Try this on your next go out.. Mahalo Glen
I agree with Glen. We did a lot of long distance training for the CCBC and the CCBC itself was 7 hours. The key is to switch stance often. I used to get a lot of cramps and foot pain. When paddling flat water I go from parallel to staggered to goofy and walk around a bit as well. Good practice anyway to move around.
I don't use a deck pad, but I often get the cramping in my feet. It usually happens after 1/2 hour, then 1 hour, then 2 hours, and then not so much. To relieve it, I just walk on the beach, or walk the board in shallow water. You can also knee paddle for a while if you're not near shore.
I just realized it's not happening much now that it's the dead of winter here on L.I. and I'm wearing 5mm booties. I just went for a 2 hr paddle, and no probs. Maybe soft shoes rather than a soft deck helps?
You will learn to relax your feet more if it's a tense or cramping thing.. but if it's more the hardness of the board thing I use Crocs on most long flat water paddles and they're sooooo cumfee.. I recomend them because of their soft sole.
Although probably not something you want to do, but you may want to wear open-air-mesh gym shoes with some arch support (or good outdoor sandals with arch support). I see quite a few people do it who are going for long periods of time. You have to consider that you are standing still for over an hour and your feet hold you onto the board, so they will become fatigued. Happy paddling!