Kraton type rubbery nibbed handles are not the best for many uses , but they are very appropriate for the extreme uses that some CS fighting , combat / survival models are designed for .Although I do not own a Tai Pan, the only thing that would keep me from buying one is... the Kraton(ish) handle material. I do have some Cold Steel, Kizlyar, Kabar, Ontario, and probably some other brand knives with such handle materials, but... their cost to me were each under the $100 mark. Once the price of a knife is over $100, I don't want Kraton(ish) handle materials on my knives.
Just a personal preference
For normal , clean dry , moderate temperature the grip is unnecessarily rough and abrasive with long hard use and no gloves .
In extreme adverse conditions of cold , wet , blood and guts , fats , grease ,etc . , That same handle will be secure to hold while most others will slip .