good oar locks

[BigEZ]

Need advice on good pontoon oar locks or stops. I have the two piece screw together black rubber oar stops and they keep working loose. Last weekend I lost half of one to Davey Jones. Instead of just buying a replacement for my oars which are roughly 1.5 inches thick, I'm considering buying the stainless oar locks that screw together on top to hold the oar secure. Can anyone with more pontoon experience give me some advice on types of oar locks and stops they've had good success with, and perhaps types to avoid?
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