Mason leader is mainly a fly fishing leader material- very stiff and very abrasion resistant. Mainly used for leader butts, but in larger sizes can be used as a running line. It is just darn hard to find in 50# or 60#. Most fly shops won't special order it unless you buy in bulk.

Can you say Island tonight?

Downriggin'
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"If you are not scratchin bottom, you ain't fishing deep enough!" -DR

Puget Sound Anglers, Gig Harbor Chapter