I visited the Hobby Emporium when I was working on the Leviathan. They had that E30 and an F26-6FJ. That was sometime in August. I purchased the F26 which I used for the Leviathan's first flight. Remember, CMASS and NAR members receive a 10% discount at the Hobby Emporium. Bring your CMASS or NAR card as proof. I always find it rewarding to support a brick and motor hobby shop. Check out Hobby Quarters in Foxboro, MA. They have a good selection of rocketry kits and supplies.
I'm guessing that the Haz Mat fees came about in 2012. I'm sure someone out there knows for sure.
Even at $27.99 the F67's are a good deal even if it is only $1.00 under MSRP. I used a couple at the NSL 2018 and they were fine. Plus no Haz Mat fee! I'm guessing that there is not much of a margin on the F67's which is why I don't think we will see them discounted very much. Apogee is selling them for $31.02 which is $2.03 ABOVE MSRP.
I've said it once and I'll say it again. We are lucky to have Animal Works. Hopefully we will see Jason at one of the remaining CMASS launches.