I notice on my Chronarch 50MG's that some have 3 rectangular holes and some have 2 at the bottom of the reel.  Anything significant?

If I remember correctly, the earlier models had two holes in the frame and the later models came with three.  No performance differences that I ever noticed though.

Thanks for the info.  I was told the one w/ three squares at the bottom are smoother.  Oh well, I never really noticed.

if i can remember correctly, as well, the earlier two-hole models were having some corrosion problems in one part of the reel if used in salt.

the three-hole models were introduced to better drain that area of the reel.

no difference otherwise.