Re: Bottom paint ???
There are essentially 2 basic types of bottom paints; Hard Paints and Ablative Paints. Hard Paints are more commonly used on slower boats, like sailboats and trawelers. Ablative paints are commonly used on planing boats. Hard Paints have marine growth inhibitors which prevent growth. Ablative paints have some some growth inhibitors, but also work like a bar of soap. When running at higher speeds, the abaltive paint purposely wears off, essentially making it difficult for anything that has grown on the hull from reamining there. This is similar to dropping a bar of soap in the dirt, then rubbing it under running water.
So you say, "...adding Cayenne pepper to bottom paint to improve it's performance...." Improving performance in which regard? Improving performance of hard paints by introducing an additional growth inhibitor? Allowing ablative paints to wear better? Or it allows the paint to be applied more easily? Paint remains intact better and wears more slowly? Adheres to the hull better?
Any statement of 'supposed' fact is only anecdotal unless validated through the application of the scientific method.