I have the plain ione/no nipple as well. Although I also have the reg nipple type which I have not installed yet. Considered the short nipple but didn't like the plastic adapter supplied with iot as I figure it will at some point break...
But...I love the Fumoto!
if you get a fumoto valve the threads must be machined before you put it on. otherwise you will not drain all the oil. i use a magnetic plug. dont worry about torquing it, and the filter should only be hand tight.
what brand do you use ? GREDDY im looking at DIMPLE m20x 1.5 OR IS IT M16X1.5 is this the correct size for 2012 outback 2.5 i Do you use there washer or the Subaru oem crush washer, I would use the oem crush washer so no leaks