303 is what i use to keep the shine and protect against UV. once on, the scum lines are not bad and just wipe right off after a days fishin. most of the damage is done by the UV. the 303 is great to put on right after you load your boat after fishing. simple spray on, wipe off and your done and ready for the next trip. the 303 lasts well compared to waxes i've tried. check out 303products.com or do a search for 303. it is even better on your vinyl seats, dash, plastics, rub rails, tires, and even the tm bracket. i can't say enough about 303 as i really like it.
jd