I have not worked for Horus at all. Coming up 10 mils will not make you run out of windage mils for wind calls, but it will negate your wind dots.
As far as seeing bullet impact, most shots I have not been able to sense the bullet impact due to foliage, and other factors. Even Todd admits to firing a round into the dirt on long range shots due to his trouble sensing misses. That way he knows how much it missed and then he can shift to the target, not sure if you would like to do that on a sniper mission.
The Tremor was originally set up to work on the DMRs and were set for 308. When the DMR program sank, Horus started claiming, with Todd, that it would work on all rounds, not rally true. The little christmas tree for rapid holds are only for 308 and can get guys into trouble trying to use them for anything else.
My next problem is the 3, 4, and 5mph windows. 5 mph is rather large of a wind for long range work, we worked to get the guys within a 3 mph window and pick the middle sped for computing the hold. Computing the hold, as an example, for a 3 to 5 mph wind would have the observer/shooter compute for 4 mph. If it is either 3 or 5 they are only 1 mph off. It takes minimal work to look at a wind see the speed and translate into mils.
As far as sensing a miss by bullet splash in the dirt, that does not occur on most shots in the real world. There is not bare dirt around the target from all the other shooters shooting at the same target and grass not being able to grow there. Sometimes targets are on hill tops, hidden in tall grass, in bushes, etc making bullet splash very difficult. As far as seeing your own trace, that is something most shooters cannot do even after years of practice, and even those that do have trouble most of the time.
As I said, if you love the Tremor that is fine, but understand the limitations on a fine wind call with the large gap between dots. The need to dial down the power to engage longer range targets. And not dial up a bit so you are not powering down to 10 power or even lower, I was at 8 power for a 1600 meter shot with Todd. That is stupid. Dial up 10 mils and you are back up to 18 power for the long shot. Wind dots will not now work once you have dialed. Oh, I guess you could look at that target at 1600 at 8 power, but why?