Antny, you are correct that the crimped sides that G Trax started offering years ago has helped with spray. My old 1744 had smooth-walled sides and I got wet in rough water no doubt..the 18" sides didn't help things either though. Since G Trax started with the crimped offering life has been a bit more on the dry side. No doubt they help. Combined with my 21" sides of my current hull and my ride became comfortable. Wouldn't own another boat without 'em now. Back in the day of longtails only, when G Trax was born, they weren't much of a necessity as we weren't going fast enough with a load to worry about spray or water creeping over gunnels. But when the shorties came into the scene G Trax saw the need and adjusted the designs accordingly.