ISO airsmith for Tigershark valve work

[Impactfour]

Like the title says I'm looking for recommendations for an airsmith to perform some work to get a Tigershark shooting up to speed. Browsing MCB and some other forums it looks like some lathe work as shown in the picture I've attached is what's needed. I've contacted BMC as I plan on having him freak bore the barrel anyways, I just figured I'd get a good backup plan in place in case he's not interested.

Thanks in advance guys!

[markdem]

If you can find enough people to vouch for this modification, i'll tool up my lathe to do this mod quickly and accurately. Only reason im not jumping to help is because ive already spent a chunk of time making unreliable powertubes that i thought would work

[Impactfour]

I think I'm going to start by trying the mod I posted above using a power drill and a file in the most OSHA approved manner I can think of. I've already got the backup powertube on the way..

[netsurferdude2]

If it is just turning down the nut on the lathe and enlarging I could do it for you. Or are you looking for a new power tube?

[Impactfour]

Just looking to turn the nut down and see what changes compared to stock.