OK Jussi, you are just cracking me up now.
Alan and Freddy, thanks for the photo illustrations. They are most helpful in this discussion.
Yes Alan, that is exactly how i held my keris in the "ice pick" grip. It still wasn't comfortable for me, but that shouldn't stop anyone else if it suits them.

It does seem perhaps more indisputable (words chosen to avoid the absolute

) that this grip does limit the reach of the blade in action though.
Freddy makes a good point about the size of Western hands in this experiment. And your hilt does seem a bit smaller than the ones Alan and i are working with.
I can't speak to the concept of palace taboos since i don't know enough about this. It does seem to me though that went people get into a fight, especially when their life depends upon the outcome, they tend to fall back on what ever method works best for them.