I bought mine four years ago, and at that time, the Salvo handles were Delrin and the screws were nylon.
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I've birds-nested a Halcyon reel. It can be done
That being said, the nylon screw on my Larry Green has swelled up on occassion, but I still like it better - its reeling action is much smoother than any other reel I've used.
What is the issue with "swelling"? Several divers here have made references to this.
Nylon absorbs moisture. Over time this can cause the locking screw to swell making it difficult to turn.
Are there any advantages to a nylon screw? or rather, any disadvantages to a metal screw?
Are there any advantages to a nylon screw? or rather, any disadvantages to a metal screw?
Nylon screws don't rust.