You know I allways thought a barrel that was free floating was better, and this clamps straight to it?? I never inspected one but if one of those clamps are out of tolerance from the other, in theory, it would torque your barrel causing worse accuracy. Now they say it has little or no effect on the thicker barrel mini's I wonder with a mechanical rest if it wouldn't get a little worse.
Now I think they look cool as hell, and wouldn't mind having one to try but I'd say you couldn't go wrong with gun docs treatment.
Free floated barrels are often the best way to go but certainly not always. Much depends upon the design of the rifle. There are single shot rifles and numerous rimfire rifle that are tuned by barrel contact points of varying pressure and location.
The Accu-Strut clamps are of a design that virtually eliminate any chance of binding if installed properly. While its true the older thin barrel Minis will reap the greatest benefit I cannot see a downside even when used on the newer heavier barrels (which are still rather light for a tactical rifle) when it comes to stabilising a hot barrel.
Gundoc's trigger work and bedding are mods that virtually all Minis will benefit from with very noticeable improvements. Every shooter, every rifle, every application will be more accurate and consistent. Certainly mods of the first order if within one's budget. That said, these mods address different issues as compared to barrel stabilizers.
My Mini program recommendation is as follows:
-Acquire the rifle, shoot the hell out of it and grow familiar with your long arm. This will help you decide upon stock selection, sight selection, optical sights, etc.
-Send the rifle and stock you've opted for to Gundoc for his Package A; bedding, trigger, reduced GP bushing and buffer.
-Shoot the hell outta the rifle again - now you can really dial things in and see what she'll do. Experiment with different factory loads or home-rolled cartridges. Field work as well as paper.
-Now you have enough information to properly evaluate your need, or lack thereof, for a barrel strut. Maybe you'll want one simply for appearance. Try taping a 5 or 6 oz metal tool implement to the foremost part of the stock and make sure the added weight is not going to be a bother. For some it is, for me its not a problem.