I've used the Heddmans, Duff long tubes, and BC Broncos (what I'm currently using).
The Heddmans are an incredible value, and easy to install. I might've used them again for my current install if the primaries were made in the 1 5/8" size.
The Duff long tubes I had required a flange gasket, which always wound up burning through & leaking.
I'm not sure who is making Duff's long tubes, but they went on easy with the mini starter and have sealed just fine.
I can almost guarantee that I removed my starter to install these. I bought them 2nd hand from another member, and they were 'seasoned', so perhaps a newer design exists.
I found that I was spending the same amount of money on the entire system when I would buy a $350 header & spend $350 on the rest of the exhaust. I figured if I was going to spend another $700, I would buy the system that had been dyno proven to yield maximum ponies. That, and I wanted an exhaust primary that would compliment the exhaust ports on my heads (cnc'd aluminum)
OK I'm going to say those headers do look nice, and I would buy them if anyone but BC offered them.
I've gathered, from a few other threads, that you're not a fan of his, which is fair. Bronco Hut offers headers, but I've never read anyone using them. Are they making them? They do kinda resemble the BC's, if I recall.