Allright, decided to go with either the C3 or C4 6501 reel by Abu. The only difference that I could see by looking at the stats is the C4 has one more ballbearing and has a higher reel speed. Does this justify the price difference?
This reel is going to be 95% of the time for Eels which I'll be fishing slowly of course. I don't imagine any time where I'll need a high speed retrieve. The reason I'm asking is I know of a website that has some 6501 C3s in stock for a good price.

Also, the reel handles on HO.com, will those fit all 6500 series reels by Abu?