Butler, The ModWright work was absolutely worth it. I bought the HAPZ1 and used it long enough to get it burned in well before I sent it off. I made some pretty detailed notes on some music that was well known to me, so I did have a good point of reference for the stock vs. Modded versions. The current listing is $2995 for the mod. Dan occasionally runs specials where he discounts modifications at times when business is slow. Discounts are deep enough to be worth waiting for. If you decide to do this, shoot me an email and I can give you my thoughts on upgrade options, tubes, power cords etc.