When on a big fish on my January trip, enough line was pulled off of my Penn 50W that I could see some corrosion deep on the spool. When I got home, I stripped all of the spectra off and, sure enough, there was a spot the size of a quarter where the anodizing had failed and corrosion had started. I buffed it down smooth but that left bare aluminum - just asking for more trouble. A new 50W spool costs $150. The only place that I could find that does anodizing also wanted about $150. So, I went looking for a place that does Powder Coating. My local shop, that showed me some very nice samples of their work, admitted that they had never done a fishing reel spool. We talked it over and agreed that they would mask off the ends of the spool so as not to disturb the clearance of the spool in the frame nor the bearings in the spool and they did a very nice job for $30 (four coats of powder coat). I will have to monitor how much protection I have now from the elements but it looks nice and is glassy smooth. I could have chosen almost any color for the same price. I wanted to be sure to know which reel to keep an eye on.