Hey guys, kind of rhetorical question but I thought it would grab attention!

Of course an 8x2 or 7x3 is preferable(maybe not?) but what is the smallest size hone that is worth the money?

I see some Coticles on ebay for cheap (~$50 range) but they are only 4" long.

I'm no honemeister but I am working on my skills and would like to try this well respected finishing stone on the cheap... or maybe I caught HAD?

Thanks
Mike