Just finished the Bottlehead Crack build, which was a ton of fun and it sounds great. I’m looking to start tube rolling now as The Tube Store has a 40% off sale for Black Friday. I’ve looked through their selection, and decided on a 6080 replacement, the Winged "C" 6H13C / 6AS7G and narrowed my choices for the 12AU7 down to three choices. Philips ECC82 / 12AU7 JJ ECC802-S / 12AU7 Gold Genalex - Gold Lion ECC82 / B749 I’m hoping some people have some tube knowledge, of perhaps experience with these tube and the Crack, as I am not very knowledgeable at all when it comes to tubes. I am willing to return some after trying them, but the Philips tube is $90, so I’d like to avoid the 15% restocking fee on that one. Also, I’ll be using the Sennheiser 6XXs (650) and willing be installing a Speedball soon as well. I’m open to other tube suggestions as well! Thanks in advance for the help!