Lamm ML2 power cords and tube rolling


Am interested in any recommended power cords which seem to work well with the ML2; also, tube-rolling experiences, in particular regarding the 12AX7, would be most appreciated.
triode
I have ML 2.1's and have used many NOS tubes including Telefunken and Mullard. The latter was not my taste BUT "wow" to the Telefunken 12AX7. Presently I have circa 1965 with a rib plate. Each tube was ~$350 but bear in mind that this is the first tube the signal sees and IMO is the only tube worth rolling in the amp.

As for AC PC's I use all Nordost Valhalla here and throughout my system.

BTW be certain to change the 6N6P tube on that amp yearly as recommended by Vladimir.
Txs, guys. That's a LOT of $ for plain ribbed Telefunkens! Are you sure they are not gold pins? On the 6N6P...I just ordered a bunch from Russia and will try to match them myself. How critical is matching on these?
ON PCs, I really like the Kubala cords on the ML 2. That's what I'm using. And, I get my tubes thru the mad Russian in Brooklyn.
I am using Silent Source Hi Current power cords from Walker Audio with good results. In the 12AX7 position I am using a Raytheon black plate O getter which I found better than the Tele smooth plate. The Tele had a nice midrange but was light on the low end in my system.