I plan to use luff slugs to support a net tramp and searched here for tramp track groove size and could not locate. My tracks are in storage so I cannot measure. Anyone know the groove size by any chance?

Thanks.

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Leave places better for having been there; respect others,
"The one thing that doesn't abide by majority rule is a person's conscience." Harper Lee - Scout, To Kill a Mockingbird.
Congress needs fixing, fix it!
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Ah-ha, I get to answer my question, FWIW to others. the groove measure .5" and is very tight for .5 inch bit, with 7/16" fitting easy but amply.

--
Leave places better for having been there; respect others,
"The one thing that doesn't abide by majority rule is a person's conscience." Harper Lee - Scout, To Kill a Mockingbird.
Congress needs fixing, fix it!
--