Recommend a 6922 input tube for CJ Premier 140

I have a Conrad Johnson Premier 140 amp due to arrive next week. Was looking for NOS 6922 / 7308 / 6DJ8 input tube recommendations from past and present owners of this amp. I have Amperex orange label 6DJ8's on hand, but looking for other options to compare.

The 6550's and 6N30's will be stock tubes for now, but I may eventually try the Tungsol 6550 current production power tubes.