Eyup Baloo.
Just seen this topic today.
Yes, SKITCH showed my a load of pics which were very helpfull when i made batty, especially the small details .
Now then, i only flew batty a couple of times so i did'nt have time to sort it out but from what i saw, it could do with a less bendy cross spar, and as you say, a lot less brake.
Also, if you stop the vid at 4.40, i think the kite has just a bridge connecting the two wings at the top. I dont think its got any ripstop inbetween? the wings and the head.
Whilst i cant do anything now as you have got batty, if you need anything to make it fly better, i have it all; just ask.
I have rods about the size of sle rods; i have connectors, and end caps to fit; white and light blue ripstop; dacron.
The only thing i dont have is the plastic tube to fit the cross, and down tubes.
So, if you need owt you can have it, just pay postage.
Sorry i cant be more help, but i hope you stick at it.
Derek.
PS. If you should try and convert it to single line, i could ask on kitebuilder, as to how to bridle the beast