I have a pair of these drivers that were pulled from MFW-15 subs with dead amplifiers. I am looking at doing a isobaric configured sealed sub. A 3 cf enclosure looks decent for one driver. An isobaric loaded pair should let me shrink that volume by a half and get the same performance.
I like the idea of a smaller sub for aesthetic reasons. And for DIY where a smaller enclosure is easier to build, stiffen, etc...