Just looking at the numbers, the Lost is very thin, very narrow, and likely has way more rocker... and all that makes catching waves harder. The comp boards I do have performance rocker, but maintain some thickness through the middle. None are under 18 wide. Check out the deck of the Lost. Is it fairly flat? A little dome to the deck, tapering into the same thickness and shape rail, will give you more volume for wave catching and maintain rail to rail sensitivity. A light glass job will keep the flex, and the extra foam will not add significant weight. The other thing to try is lower the entry rocker. Keep the flip in the first few inches, but lower the overall curve in the nose. The last thing to consider is the tail... added thickness, added width, and less kick will help you catch waves easier. But the tail on the Lost looks good.