I know...don't need a windlass
but it came with the boat and now that I'm getting a heavy anchor...there may be a time when I want to use it. So...now that I need a new chain for my new anchor, I want one that fits the windlass. Problem though...the old salty that I listen to tells me that 5/16", which I now have, is not the right size and I should use a 3/8". Do you think a 3/8" ISO would work? Would a 5/16" US G4 ISO = a 3/8" US G4 ISO as far as the windlass is conserned? I don't have a manual on the windlass so I'm not sure. I looked up the windlass manufacture and the model that looks like mine asks for a 5/16" US G4 ISO. I looked up the working load for it and it's listed as 2,400 lbs. That's enough, right? So if I go with the 5/16" instead of the 3/8" I'm really just paying for the extra weight, right? But also taking a chance it will not fit the windlass, right?BTW: Windlass look like this one (http://mauriprosailing.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=LEW0044120108X&Category_Code=LEWANCWIN) but definately not the shiny 