Tuning Fx harmonic tuning shroud on the RAW???

They have just the weighted end for sale to thread onto 1/2 x 20 

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Then you can thread a moderator on to that if you wish. I think they plan to sell that for about $79?
 
Healthservices, i just recieved the barrel deresonator and am curious as to where the bast place to put it would be? I cant imagine that placing it over the carbon fiber wrapped barrel wouldnt make any difference at all but im no expert. I keep reading stuff about people ADDING a carbon fiber wrap/shroud, for barrel regidity but i thought all of them already have this...
 
Your product did not come with instructions, did it? I would be surprised if it did. Funny how they make this product that not many people know about but at the same time somehow don't give you instructions either. 🙄

Just slip it over the barrel somewhere generally toward the end is the best starting point as long as it is not in the way of anything and start there. When you first shoot you will notice that your air gun does not group the way it did before. That's because the weight is probably not at the right spot and causing bad harmonics. But you do a group. Mark the spot where you had it then move it some and do it again. You don't have to move it much because if you look at the marks on the fx tuner you will see how fine the threads are so you are barely moving it back, yet each time the group can change. You keep doing this group until you moved it about a inch or so back you can try more. Now you look at the groups and look at the tightest groups. Find that place where the tuner was and move the tuner there. Now you do groups again each direction but smaller movements to fine tune and make your groups smaller. I read it is best to start at about 50 yards as further distances can be altered by outside sources like wind. From that best setting you go out to 100 and you can do even more minute movements to fine tune. This is basically what I have read and done. My groups with slugs was fantastic for me. My biggest issue is me and parallax error with the scope preventing me from getting better groups. Hopefully this will get you at a starting point. I'm still learning as well. 
 
I purchased the deressonator, not the tuner. My plan, i think, is to remove the barrel and place it against the breach block. Again, not sure if this will help with barrel whip being placed over the carbon fiber sleeve. I also purchased a barrel collar to slip over the barrel, preferably towards the muzzle, as you suggested, but with the RAW's new moderator design, im not entirely sure how to go about this. There is about 3/4 inch of actual muzzle exposed and then there is an aluminum tube, internally threaded for the second stage of the mod to screw on so if i cant figure out how/where to place it, i was thinking of putting it further down the barrel, past the moderator but everywhere i look, the tuning weight is always at the muzzle so does placing it say halfway down the barrel, not work for tuning?