I have a few of each that I use on my precision rifles.
On EGW the only trouble I have had was with the base screws they sent. I called and asked what torque value to use and when I applied that to the first screw it striped. That was before they started a “HD” line. I used one of those as well and the base and screw set were much better made/finshed and sat lower on the action. If I were to buy more, The HD line would be where I would look.
On DNZ, I personally love these. I bought a Nightforce one piece mount and liked everything about it except for how high my scope sat above the barrel with their lowest mount at the time (they now have one that is lower). Searching for something lower brought me to DNZ. At first I was skeptical because of their appearance but after ordering one I was very impressed with the quality. Now that is my go to mount for any rifle I am outfitting. The hole mount weights less than a badger rail plus It’s has two less nuts to loosen at an inopportune time. The only issue I have ever had is with my SWFA SS 5-20 scopes that have a much longer eye relief than most. These scopes can’t be moved forward enough to give me proper eye relief. All the other scopes I use work fine, the mount is just lacking about 3/8’s to 1/2” of room for the SS scopes. Aside from that they are a great mount and why four of my Remington’s now wear them as well as my Encore muzzleloader.