I only want my LE to be dry when landing on the beach so sand won't stick if LE wet.
Since this is the second time you're mentioning it, I guess it's a real issue for you.
If I can, at the end of my session I try to take it easy for a couple tacks to let the LE dry out if I've dropped the kite at all. Understandably, this isn't always possible due to the conditions at the time or the nature of the launch.
My backup plan for a wet kite is to bring a dustpan or utility brush along with me and give the LE a good brushing/beating before deflating. It works a charm, which I why it's part of my rig/teardown kit:
- Carabiner Quickdraws & Rope
- ..all in a nylon 'shopping bag' for use as a self-launch anchor (if necessary)
YMMV, but I agree; there are fewer things worse than ending a good session by packing up a wet and sandy kite.