A couple comments:
The antler overlays are too chunky. There is extra mass because the corners are left on the back. I prefer a much less abrupt corner for a few reasons. First, it looks more refined. Second, it removes unnecessary mass. Third, it is much less likely to be damaged.
That said, I would not suspect those small tips to be the source of excessive hand shock. I find that well tillered and tuned bows are the key. Good form plays a part too.
If you are used to shooting a modern recurve that is tuned well, you may find that this style bow will have more hand shock. It can be managed but I have never been able to get a self bow to feel as dead in the hand as an equal weight modern recurve.