I think alot of the reason that people run hella E codes vs IPF was the price, when I first got my XJ in Dec of 97 I started looking and CIBIE was outta sight price wise at $130ea from stern, IPF's were $90 A HOUSING w/no bulb at OK4wheel drive, Hellas were $93 a PAIR w/55/65 watt bulbs so I got hellas
plus I had never heard of IPF before, they were a pretty new name here in the US. Susquehanna I like cause he has the stuff in stock and gets it to you pretty quick and he's been around a while. I needed a 450 lense and got it in 3 days, well packed. He also has alot of good info on his site including wiring harness schematics so you can build your own aux harness. He also carries some pretty exotic lighting with some price tags to match.
One thing that has suprised me, anybody else notice how hot the competetion seems to be getting on aftermarket front bumpers, prices are pretty competetive as are features,
wonder who the first one will be that offers cutouts for recessed fogs that go inside the bumper like for the hella 300 fogs which would get them out of the way and very solidly protect them.