I have one of these on order at LHS and was told today it's on back order. When I asked if it had been discontinued, I was told "I don't think so, they (Sig) would have told me when I ordered it."
Just speculation, but the last Skyray 35 I bought was an interesting mix of parts. Mostly die cut, but a few laser cut parts. The Twister I just bought was die cut with some print wood parts (how's that for nostalgia?). I'm wondering if they're just closing out their stock of "old tech" kits and will replace them with updated laser cut versions of the same kits. I hope so any way. It would be a real shame to see the Banshee and Twister disappear from the market.
cheers,
Ken