thanks! If it works alright I might buy just the cooling unit to use with fw3. Getting the crafty CU has always been a popular suggestion for cooling down the firewood but tbh that combo looks so dumb I didn't want to try it. With the fw4 CU, even if it won't look exactly like it's meant to be there, it should still match pretty well since both are walnut
plus that way when I get around to buying the fw4 I'll probably only need the unit (the fw3 capsules probably work in the fw4 right?)
I tried the Crafty CU hack w/ my FW3; Too much cooling! Lost the flavor and feedback but had some really intense sessions, ultimately I used it ocassionally but mostly used a mouthpiece modified to be about 3/4" longer than stock and needed nothing more.
With my FW4 the cooling unit is nicely effective and the narrow tube is nicely matched to the proper draw, but after months using only a Milaana I prefer a wider mouthpiece. Marc was very kind to provide me w/ an extra bit of walnut and I finally got around to attacking it w/ a dremel and a sanding block to mate the FW4 to a Crafty glass mouthpiece:
This provides all the cooling I need for my low-temp sessions, I very occasionally cache a capsule on 3 when I'm going for full and fast extraction, usually sip on 1 and finish w/ a couple hits on 2.
My FW4 has replaced my Milaana as my every day carry, the compactness, the easily pre-loaded cartridges, and the sweet interface & regulation all stand out, and both vapes have strong log-vape effects. The Milaana is special w/ gobs of smooth power, but the FW4 is more than I need and really suits my use.