Welcome Mick!

I think the tek-lok kydex is a great option as long as you can keep the dogs away from the res-c. With the right setup you won't even feel the blade. My kydex with tek-lock from Rainwalker and BuyBrown is perfect, neither feel heavy and those are for my Regulator and S-5.

Regulator

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S-5 and Muk with kydex X-loop

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JYD #66 Endure to the End Long live the Brotherhood of the Yard