great issue too bring up dude..i cleaned a few of my lines a few nights back after having them for less than a month, granted a dozen days on the water...and man were they dirty...i find that most speylines dont float as high in the surface film mainly because i think they were more designed too be fished on the swing so i figure i will be cleaning all of my floating scandi heads a little more often when nymph fishing...didnt realy think about shootability in the running lines tho being slicker and cleaner....good on ya for mentioning that...im with teh wetrag then scientific anglers line dresser for treatment...