My Laser 2 traveller is worn out and I'm replacing it, but this raises the question: should I be adjusting the traveller when I'm sailing? I have it set so the block is fixed on the centerline and can theoretically be moved up and down, but I've always just left it about a foot or so above the deck. What conditions would one move it up or down? Do I really need the extra line length leading to the cleat in the cockpit or can I just splice some eyes to the deck fairleads and leave it in a fixed position?