Corner Hangers

OH MY! I'm going nuts over here. There are so many ways to do things. I'm trying to figure out my corner bass hangers. I'm so confused. I want to build them right. Do I build them with a slat front like John shows here... http://www.johnlsayers.com/HR/index1.htm with the acoustic hangers inside? Or do I do them with just a cloth front, with the hangers inside. The other question i have is about the hangers. what is the best way to make them? I read a couple of different ways. The way i was thinking about doing them is the fibreboard wrapped with pink insulation batt. is this a good way? is fibreboard the same as 10 test?

Or do I do them with just a cloth front, with the hangers inside. the way i was thinking about doing them is the fibreboard wrapped with pink insulation batt

Just cloth front for low frequency hangers - yes fibreboard with insulation or dacron polyester cloth. cheers john