Having bought SFA for 3 or 4 years, I took the plunge on the Mixx, (ameythyst and orchid, easy to find) for 27 GBP each.
Very happy, nice build (if a bit hefty). Venting cap is reassuring, I think I'll drag out my all time favourites, the le magister clone, and have an 18350 set up worth using.

Much thanks to the community!