Sorry, but this is going to be a major whine. You've been warned, and can skip to the next post if you like.
None of these expensive UL poles, the LT4s, the Locus, the lighter Fizans, and the lighter Komperdells have grip extensions that project down from the main grip.
I love these extensions, as they make hiking in rough terrain much more pleasant.
The extension itself, if made of light foam, weighs very little - no reason not to offer them. Have tried the MYOG approach, golf grips etc., but they are much heavier than the foam ones that are integral on my Scotts that cost around half as much.
So think I'll continue with the slightly heavier poles with extensions, and with more strength. But keep an eye out on Black Diamond's line to see what develops.
But will NOT boil the grips off one of the Ultralights, and replace with grips boiled off the Scotts. Why? 'Cause I'm sick and tired of having to make or remake every dam* piece of gear I use just to get a more suitable product !!!!