Thank you all, making good use of everything you've thrown at me. Was able to take the kite out today and put everything I've read and seen into practice, and, my, what a difference.
Firstly, figured out the basic controls moreso thanks to the posts above and this nice little tut of the [Rev 1] from Joe Hadzicki himself (is that the one that is usually bundled with the SLE too?).
My error was doing far too much handle-pulling (like a dualie) and not enough thumb-pushing (wrist twisting). Assumed good control over the kite once I knew exactly what was required, actually I was surprised how quickly it takes to get a hang of it.
That said, 15mph winds might've been a tad gusty to learn more on - a jump in the deep end with a full sail, 80' lines and UL frame (maybe I should've put the SLE back in), ho ho - but very fun. Never had a kite that could move from the ground to the top of the window SO fast. The airborne equivalent of the Ariel Atom. The wind speed also - very quickly! - taught me the necessary lesson of brake vs. drive (forward, hover, reverse) using thumbed controls.
Was able to enjoy sustained flight, fly contentedly around the window, figure of 8's, land on cue, and even tried to push a few boundaries to see what it could do further.
In doing so everything everyone mentioned in this thread became crystal clear!!!
Where to begin. A few concurrences for you guys, hehe...
1) I need longer leaders on the top! Just to add a little damping. - It may have been the strong wind, but a few times I felt the kite wanted to go over the top of me (and beyond!), despite pushing both thumbs forward at times (maybe too late, however). I have no problems launching the kite, so longer leaders wouldn't be a problem.
2) Think I'll be buying a vented at some point! What's this, a second kite, already? Another non-surprise for you guys. Really think I will be needing a vented at the coast, though. 15mph is common, and a vented might help iron out the gusts somewhat.
3) It really is a massive bundle of fun.
4) Although 120' lines might be nice, I can't really use anything longer than 80' due to width limitations of local recreation grounds and beaches. Anything longer and people would almost have to walk underneath me, which I don't want, and they probably wouldn't want either! I'd travel further afield but am unable to drive due to health probs. :/
5) Tent pegs (as stakes) can be an absolute bugger to search for on both grass and beach if I fail to pick the peg up and put it into my pocket at the same time as picking up the handles. Will be putting in an order for a couple of Walt's marble stakes soon!
6) You guys are ace. But you already knew that.