First of all welcome to P&S! Regarding your question the main difference is that the "rings" on a spinning rod had to be larger to accomodate the way the line come off a spinning reel, in loops. The line on your 525 will come off in a straight line and can be used with the smaller "rings" on a conventional style rod. To complicate matters further you can get a custom made rod with "low riders" that will accomodate spinning or conventional reels.
I have a few Abu conventionals, a couple of saltists and 3 525's. They are all great reels but I learned on a Penn 525 mag and it's still the 1st one on a rod. I still bring that rod too, an Ocean Master but the Tica rods are nice too. Just my .02 and again welcome!