I ordered a F2 4.7 in 20cv a few weeks ago and the F2 4.1 in 3v today. It says to check the production schedule before ordering. The schedule says they will ship between 15-30 business days. I guess I'll see and will update when I receive the shipping confirmation. Personally, I've ordered direct from Survive in the past on a few 4.1's, 3.5's, and a 5. This was before they moved their shop with all of the upgrades. It's always taken them longer than expected, but I've always respected the quality they put out.
I have found myself buying off the secondary markets while waiting for the ones I ordered to ship. That way I have plenty of knives to play with while I wait. However, I could see some of your concerns because paying up front and not getting the product by the estimated time frame is frustrating. I currently have 9 GSO's and dont mind waiting 3-6 weeks for the F2's. However, I do need to stop because Im realizing that I have a problem.