Scotty Model Number

[Doubletyee]

I was wondering if anyone knew how to tell what model your Scotty downriver is. I know it’s easy to tell the 2106 but I have two older ones one with a single belt and one with two belts. Which is which and is either of them better?

 

[tubber]

arm length and whether they are extendable. Also does the double belt (older) one have narrower tubing? that makes it quite old I think.
Longer arms are good for not catching the prop, or the gear on the other side if fishing deep. Too long puts a lot of strain on the mount on a smaller boat with rail mounts like mine. Is that better? depends.

http://scotty.com/product-category/...-mounts-and-accessories/electric-downriggers/