Just made some potent-looking honey oiL

thats pretty close to what mine looks like but i didnt want it to be that long. mine is about a foot long or so and it fits about an ounce or so. its always worked pretty good for me but i havnt really had enough to do it alot. i wish that i could afford to get like a whole ounce of some crappy stuff or something and run some butane through that. i would be able to get alot of fairly potent shit(better then just smoking the bud if it was really crappy stuff)

can anyone else tell me why you would need it to be like a foot and a half long? is it just to be able to put more material in it? or does it filter through better if there more empty space in it?