Cowrock,
I mentioned this in the last post on the thread below (M200 Modification). To take a different view from Soundhound (I enjoy his post and agree with him on most things), I think mods to stock units can be a good thing. You can read more in the other thread on why I feel this way. But, I would not buy a mod retail. How would you ever know how they compare without first knowing how the stock unit performed in your system. Don't listen to anyones opinion, not the retailer, not me, not Soundhound. Listen to your ears. If after listening you wanted to move in the direction of a modded unit, there are a number of items that they are doing to the unit that are very simple mods. You may be able to get a nice benefit by doing some of it yourself if you are confortable with it. I would even use some different parts than those listed and would go one more step and change out the binding post. I hate those standard binding post you get with todays mid fi. You risk the warranty, but as I pointed out in the other post this is a nice price level item to take that risk. There are other things they are doing that I would rather let them do. They do offer some warranty with the mod. There are some of the mods that they are doing that should help the sound of the unit. That said, it may not be enough to make it worthwhile. It might also turn the 200's into those killer monoblocks you thought you could never afford. Only way to find is to try it. Follow the other advice and you never find out. You are then always content with the status quo. But first listen to the stock units for an extented period of time. You may find the stock unit is all you will ever need so any mod would be wasted money. But you may think that it can be improved and want to try. In any case it is not just BS. The quality of the parts they are using tells you that. I do not have any ties with either of the gentlemen involved in this, but I have dealt with both and found them to be honest and reputable businessmen. Hope this helps a little more that the standard one line "stock" answer.