Your tube preamp and ss amp thread

Last night I was listening to my tube preamp and my tube mono blocks, noticed an imbalance in the sound, and as usual I traced it to a tube problem in the mono blocks. Luckily, I also own a ss stereo amp as a 'backup'. IME, ss amps tend to be a lot more reliable than tube amps. Nonetheless, I would be interested in how many other folk run a tube preamp and ss amp combo, and if so, what are your choices.
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Modwright LS100 tube pre with Modwright KWA100SE ss amp
Supratek Cabernet 300B/6SN7 output into Belles SA30 class A
VAC Renaissance V into an Ayre VX5/20.  Used this pair for 5 years with great satisfaction. 
Rogue Audio Metis Magnum preamp/McCormack DNA-125 power amp.
Modwright LS100 and Herron Audio M1 monoblocks. The LS100 will soon be replaced by a Herron Audio VTSP-360.

ARC LS 26 and Wyred 4 Sound ST-1000 mkII in my bedroom system.