EL-34 tubes in Rogue M-150 amps


I am considering rolling some EL-34 output tubes into my M-150's monos. I would appreciate Rogue owners opinion of the EL-34 in these amps and any suggestions regarding which brand of tube to use. Currently using the Golden Lion KT-88 reissues which sound very good but as always I am curious about how something different will sound. Thanks
sgunther
It has been a few years since I ran Rogue mono's, but i really enjoyed SED Winged C EL34, well balanced throughout the spectrum; solid bass, harmoniuous but not overly romantic mids and nicely extended highs. At the time it seemed to be the most natural that I used, as EL-34 in general seemed a little bit romantic for my tastes.
When I had M 150s I had one set of cryoed Electro Harmonix EL 34s & KT 88s. I found the EL 34s wonderful for small intimate recordings, but much of my music is larger scale. Definitely run them balanced
I have Quicksilver V4 monoblocks with KT88's which also sound great. I lso have wondered how making the change to EL34's would be. Any more information would be appreciated. Thanks. I run them with Von Schweikert VR4jr's.