If you have seen all of JB's videos there is little extra that the DVD add.
I would definitely recommend making up longer top leaders on your handles, it makes life so much easier. You can use any old string within reason or even untie the top leader and reuse it as a single rather than double. The extra length on the top (brakes) slow the kite down which might make launching harder but make the kite easier to fly.
You might try your first flight(s) using the SLE but the 3 wraps are not that fragile.
Good luck with your first flights. You might consider taking JB's tutorials with you if you are able.
There are a couple of members in the north of Hampshire. I am based in Portsmouth. I usually fly at Port Solent unless the wind is from the north when I fly on the top of Portsdown hill. If you want to meet up then drop me a pm. I have a few revs so you can try some out if you have not got yours yet.
I am afraid that I am not that good a flier. I have been over at Stokes Bay at Gosport but each time I go I am the only Rev flier. The Hampshire Hoverers Jonesey, Sailor, Hippy Chippy and Yrma seem to be rather quiet at the moment. I have yet to fly with them. There may well be some Rev fliers at the Jolly Up at Basingstoke this weekend, 27th to 28th, it does not look like I am going to get there.
Also there is the Portsmouth international kite festival over the August Bank Holiday weekend as well as the Basingstoke and Southampton kite festivals in June.