Simply an excellent guide. And really solved an issue for me. I've this ambitious (for me) plan to do a major flotilla-type thing to the Jool system in a single transfer window (Y3-D270) in career mode now I've got the funds to put up a bunch of stuff at once -- like twenty vessels queued in Kerbin orbit for transfers, use a calendar/clock/reminder thing so I don't miss any (they're all scheduled to do the eject burn from Kerbin like hours apart over a period of some days), then transfer them all in coordinated fashion, to do a huge mission all at once. Buncha relays around all the moons and some big ones at the edge of the system to boost the signals, heavy landers for Laythe and Tylo, a miner/refiner thing working on Bop and Pol and keep refuelling the landers (I've got the Laythe one reuseable), some tugs and ferries for slinging crew and landers around, some tankers to transfer fuel into the inner system from the miner/refiner on the outer moons...
... and a space station, just outside Tylo's orbit, with lab for promoting crew.
Solved all the other bits, step by step, built stuff to work. The sticking point: the space station. Plan is to assemble stuff at right angles to its central axis, after it arrives in orbit, transfer it and some of the components separately, stick on some extra habitat modules, stuff like that. And while I've done lots of docking and recovery stuff before, it's always just been relatively simple nose-to-nose things. Always made it work, but it was always a bit of trial and error, save the game a lot, so on...
And when I started trying it in a scratch game, to do the really fiddly bits of putting the Jool station together, make sure everything worked, I couldn't use my usual approach... Can't just sling a space station around like you need to the way I do a simpler nose-to-nose rendezvous; you need to be able to fly the incoming ship a lot more delicately and precisely than I was used to, and get it all to line up from just that one side.
This guide, and that mod (I say, oh, yeah, get it) for working out the angle of the ports, that solved it. Very first attempt at gliding in the first habitat module, following this approach, it went just like the label says it does. I swear you could hear the magnets snap it on. Did the next to confirm it wasn't just dumb luck, and yep, this is how to do it, all right. Thanks so much.