@fsonicsmith1 Going all- in with KT150’s was a mistake? IMO, this tube is pretty superior sounding ( depending on the circuit) to the older KT88’s, 6550’s and even the KT120’s. ARC was always looking for the way forward, which meant going to the latest tubes and designing around them.
OTOH, if ARC are continuing to have reliability issues, ( I was unaware of this), then that would indeed be an area of concern.