Yes, yes, and yes. I "retrofitted" my Stealth and mini-digital Stealth by double-cryogenically treating them (at Cryogenics International). Huge performance jump, and most highly recommended.
As far as using the Cable Cooker (which I manufacture), conditioning the Stealth for at least 4 days, preferably 5 days (followed by a little bit of system time) does "the trick", and avoids the 30-40 day break-in hell.
As far as using the Cable Cooker (which I manufacture), conditioning the Stealth for at least 4 days, preferably 5 days (followed by a little bit of system time) does "the trick", and avoids the 30-40 day break-in hell.