.25 is indeed a lot of herbs for a log vape! I wouldn't say it would be something you would do frequently with a stem, since those kinds of hits are hard to take without water cooling/moistening the vapor. But it can fit in the oversized Nylon Direct stem, by adjusting the basket a bit deeper from the "standard" position. Now, if you are using a water tool, the chamber size of the XL 18mm NonG can take those kinds of loads but you would most likely need more that one cycle to fully clear/extract that chamber. The alpha works quite well with small loads as well, but it really shines when paired up with water and a little bit more material. *edit* Even with that in mind, .25 is two to three times more material than I would normally use with the Alpha OS stem/NonG or the XL NonG. Here are some pics the alpha stems: The first DirectDraw and NonG from the left are standard sized ones for comparaison.