Lurked for the past 501 pages, but thought I'd join the fun now with maybe something interesting to contribute....
I became fascinated with vapcap after seeing the stashes and woodies - such an homage to the old stoner and our hitters and dugouts! I started reading the thread and getting more and more interested, while being totally satisfied with my FF2 along the way. I kept reading, and got more and more interested.
So I bought a used Ti WoodyS and a DynastashER, before I knew anything about new tips or upgrades, or new ideas, or CCD screens, or more airflow, etc. Ended up with a 2nd generation tip, and a ceramic screen. And the thing hits very, very well.
So VAS hits immediately, while I'm still working my way through the thread, so I buy an Omnivap before I knew anything about that stuff, and ended up with another 2nd generation tip, this time with a CCD screen. It hits even better, no muss no fuss, and after figuring out the mouthpiece, I can dial in the resistance I want, making it hands free operation...! I figure I've reached the top, the best of the best Vapcap offers...
Then, of course, I start reading about the wider channels in the 3rd gen Ti tip, screen refinement, Adjust-A-Bowl, etc. VAS, damned VAS, hits again, fiercely!
Luckily, I've converted some people along the way, so I start turning them on and using the gifts I gave to warrant an upgrade myself. Just got my new order with some screens, a new tip, new cap, some o-ring spares and hemp fiber, and can now offer some observations old v new.
For those wondering about upgrading your tips from the older styles... READ THIS FIRST!
If what you want is more airflow, more "convection," get the new tip. It seems to preserve flavor and production over more cycles. I'm getting 5 heating cycles or so, vs 3 heating cycles per bowl with the old tips. It is better in nearly every way from a flavor perspective.
If what you value in your vapcap is quick and brutal extraction, maybe stick with the older tips, or heat farther past the click on the new tips than was safe on the old - up to 3 full seconds. I've found my older tips extract more faster, but with less flavor, than the newer wide channels, and the only way to pump up production is to increase temps on the new tip.
The too long didn't read version of this observation is - don't worry too much if you have an older version of the vapcap. While there are differences, I'm finding that both offer a quality vape experience, with some minor difference that can be largely overcome through shifts in technique. Older tips = fuller extraction over fewer cycles, sacrificing flavor. Newer tips preserve flavors better, but may take more application of heat to extract fully in fewer cycles.