So i flipped this little rigger and it winds up nose down (from the prop wash boiling up) in six feet of water (no surface goo, and muddy bottom, no weeds) . It stays down for 40 plus seconds. I repeated this twice (inside of hull was dry and no weight gain, so the sponsons must be dry, too) . Is there something that can be done besides not being a lousy driver? Does this happen to others, with regularity?