Threadcerts would be a permanent insert and some folks do not mount a windscreen. In the older days it was only about 20% that mount one, then to today when it is between 10 and 20% who do not, depending on local. They do have the compression tool for that, and they were once used on the seat assembly for Puma, Pantera and Sabre models. Not the ones with storage under the seat. The Twist style of plastic aircraft fashion tend to shear off, should one goes through a wave and put the windscreen into your forehead or bridge of your nose. On large bodies like Mead, The Delta, Great lakes and Sam Rayburn they can loose a windscreen if you spear one. Not common, though it happens. We dont that boat ourselves. Though someone at the factory might. The would suspect that they are a dealer mounted item as BCB does not mount windscreens unless the owner requests it and they are mounted for them to pick up, through the dealership. They mount very few windscreens. BCB Admin.
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