Tube rolling for the Cary SLP 2002


I want to know your experience with this preamplifier and the tubes.
The Cary use 6922 tubes but they can be replace by 6H30, 6CG7 or 6FQ7.
Did you try them ?
I´m very interest on this preamplifier so please let me know your experience.
Thanks
diegoruben3017e
Don't know if this will be useful or not to you but here goes...I used this tube preamp with a Pass X250 amp & it was a great match although the gain match (volume) wasn't perfect. I couldn't run the pre past 9-10am on the dial. I sent the unit to Cary for the "gain Mod" reduction ($125) because the gain was a bit much with the X250. Looking back I should have just used the 6CG7 tubes which reduces the gain without the mod. The mod was too much gain reduction for the X250. I used EH 6922's the whole time.
When that preamp first came out it was equipped with the 6H30 as standard. I can't remember now but I think that the 6H30s gave it more gain.
I don´t have experience with the Cary 2002, but I tried many 6922 tubes in my SF preamplifier.
As I know if you want more tubey and warm sound try NOS 6922 tubes (Amperex PQ, Siemens, Valvo...) but if you prefer more neutral sound try the 6H30, probably the 6H30 DR work better than the standard 6H30.