It IS sacrilege! Haha! In the past, I always tried pairing them with old conshelfs, then went with MR12s (just because of the connection between Voit and US Divers). I can’t quite recall when I started using 109s, but I’m sure I was heavily influenced by other SP fans (looking at you, Couv!).
Besides, I’ve always found the SP SPG to be very, very pretty - especially the black ones!
For the mouthpiece, I found one of my old Voit hourglass mouthpieces and stuck some Sugru on the front.
