I had it done on a Blue Stripe. It will round off the top end buzz and give more chunck to the bottom end. It will also clean up the R1 channel a bit. The amp seems to become a tad less gainy and a little less tight but had a more pleasing gain quality. I thought it was worth it for the $200 I paid at the time though I have since sold that amp in favor of a Studio Pre and 50/50 set-up.
If it's not broke don't fix it, but if you aren't satisified with the sound you currently have it's something to try. Personally I loved my stock blue stripe and would of never had it modded, but like I said, if it's not doing it for you then it couldn't hurt to get it modded.
YES! I just put the prescence control on my Mark III Blue Stripe Head on 0 yesterday and liked it, now I read others do it too. Cool. It just sounded too sharp before.
BTW, I have a couple Mark IIC+ heads that I really love (I used to have 4 of them), so I am used to how they sound.
Feel wise seems the same. Tone wise I liked it better because the cleans were much better and the gain character was VERY similar but has more clarity.
