If you look at a bone stock Jeep 4 link...they really are very well though-out, and they work great right off the show-room floor. The problem is...very few of us even notice or care about a stock Jeep suspension. They sit way too low for big tires, so naturally the first thing most of us want to do is lift it...and that's where the problems start. I tried to stay close to the stock Jeep design...no sense to re-invent the wheel. Jeep has millions and millions of these driving around, and my hats off to them for staying true to the SA design, thru many different owners, recessions, and hard times. I copied the hell out of many Jeeps I saw on the internet...if you study it long enough, it becomes clear what works and what doesn't work when building your own.
The H3 has HUGE wheelwells compared to everything else out there...so that is one hurdle you don't have to deal with (like an XJ or ZJ). Also there are very few choices on where to locate the link mounts. In fact...the only place to attach links to the frame is where I put them, (it made the decision very easy!). The angles and lengths end up being very similar to a stock Jeep rig....I'de call it a "mid-arm", longer than a stock Jeep but not a true "long-arm". It has the same height and clearance as a 6"-lifted Jeep...but the suspension angles of a stock one.
Recon is running similar lengths & angles, although his track-bar and steering are quite different. He's running coil-overs too, so its definitely a high-end rig compared to mine. But, we share the same (nearly identical) link arrangement, and I've seen his rig flexed all over the place...way beyond what I built mine for. This geometry works. I'm currently building a complete H3 3-link on the work bench, and I'll post-up some pics and dimensions when I get it all assembled.