USBP1969,
I don't know about either of these bows, but this might help you. I have a Mahaska longbow that was quite shocky. I loved the bow, but like you, the handshock was causing me pain. I put the bow up for sale, but before it sold, I started reading the thread about O.L. Adcock's 4 strand string. I made an 8 strand d97 string, padded the loops to 16, served the loops with yarn, and put it on the Mahaska. Much to my surprise and delight, the bow now has NO hand shock!
I can't believe the difference. If I build a new string for it, it will be a six strand. I have them on my Kanatis as well. They had no hand shock to begin with, so I just wanted to gain some performance. I don't have a chrono, so I can't say whether it worked or not.
Before you give up on your Hill completely, put a 6 or 8 strand D97 string on it. It worked for me.
BTW: I'm keeping my Mahaska!
Russ