Here's my experience with orange seals (ABEC 7's from Boca) in over 16 Shimano & Daiwa reels of mine, my sons and 2 brothers.
First they will give you extra orange seals for FREE. So no need to "worry" about removing and replacing. IMHO easier than poping in & out the split ring (try finding that on the carpet). Actually the removal and reinstalling is pretty easy if you follow their video links on their sight. It gets easier if you do more than just 2. Again extra seals are FREE with an order.
Second I clean mine with some Acetone then place on clean cloth. Add few drops of Oust Met-Oil from Smoothdrag.com letting it drain onto cloth (I'm sure any of the other brand oils will perform well but I like low viscosity oil here). install the seals. If the reel sees hard service repeat above when desired (football season is a great time for this, I do this during the games) once a season. I use same process for cleaning but pack with Penn Grease for bearing at Pinion Gear and Drive Shaft. These don't see high speed but invariably see less maintenace.
Third performance is a darn hard thing measure with in concrete terms. With Corky's OEM bearing are great as are #5's & #7's, all is good for this size lure.
However face a SE wind & throw a 1/16oz head & 3" tail trying to hit a tight pocket in the grass then things get a bit more finite. I find the ABEC 7's a bit better. Again I use the term "bit" but not majic.
If you buy these in bulk (5 or 10 packs) and call direct and simply ask for a better price they get more affordable. Yes they are a luxury that some say are not worth it. But then why by a Core, Calais, or $350 rod. Probably we'd all catch as many with the old red reel & $40 rod. So jusfication is left to the buyer.