1) After it's done preheating (I've been vaping around 375f), I still can't seem to really get a hit for the next 30 seconds.
2) I love that it has so much airflow, but when I hit it hard it whistles, mildly annoying to the point where I've thought of drilling out the intake to join all the little holes into one big one.
I too am glad you're enjoying your new vape, it's a good one for sure.
As HRB just said, your experiences are quite normal. That is we all see/experience them. The two cases you cite above are in fact related and are inherent in the design. This is a
conduction vape, and as in all similar machines based on a temperature sensor in the heater,
not in the load where it matters WRT vapor production. Heat must 'soak' into the load (by conduction). Even though the readout says you're at magic temperature when heating from cold the load is still 'catching up'. This is related to the need for heat soaks between hits (although it's not as long a delay since the load temperature is hotter to start with).
In the second case you need to remember that unlike blazing, where the increased air flow heats the fire up hotter, hard draws pull in more
cold air which robs heat from the load that would normally make more vapor. Think about it, vapor production rate is based on how fast replacement heat can soak into the load all you can do with hitting harder is get more but
less dense vapor faster. As HRB advises, keep your draw rates low (favoring longer hits) if you want more goodness out. The maker understands this which is why the path is as restricted as it is? It ain't broke, no need to fix anything......
Regards to all.
OF