nerae
Log vapes are particularly unique in that everything is already 'set'. The heat is constant, the bowl size is fixed so it is up to the user to vary the flow in some way. Here are some flow varying techniques:
Vary the grind. Too fine does make a lot of surface area but packs too easily and generally will not let the air flow around all that surface area properly. Play with the grind.
We still like very dry herbal material. Maybe coarse ground pepper consistency. Usually, when herb is dry enough, you do not need a grinder. Just crunch up in your fingers. Does make for sticky fingers though.
Fill tip only half full to start. Get the flow down then do bigger bowls(stem tips)
Vary the stem tip pack. It sounds to me like you had it too loose, causing more and hotter air through the stem tip contents. Too tight and you will not be able to suck properly but I generally recommend tighter than just a "straw suck". A bit tighter pack will allow the heated air to move through the stem tip contents slower and steadier. A tighter pack with slightly coarser grind will still allow air to move through the load at the right pace.
Vary the draw. Do not try to suck hard. Do not expect a free flowing glass(or wooden) pipe draw. The draw is restricted by design so you must work with that, not try to make it go away. Pull easy and slow after starting with a couple choo choo type pulls to get the vapor started.
This is just a start and maybe others will add to the list. The bottom line is log vapes will teach one patience and perseverance in the process of getting the flow right. Once you get it, you will always have it.
Getting to know your log is a learning experience. Once you know it you will love it. The good news about your log is it appears to be plenty hot.
edit for:
Looks like any orders received through Saturday will make before Christmas delivery for sure. That could include the entire weekend if it does not get too crazy here in Zapville.
Also, many folks get in the habit of testing the stem tip pack by pulling on the stem before they put it in the Zap. If it pulls too easily, pack a bit tighter and visa versa.