You're going to have to talk us through this one:
1) Why's it needed ... if the Strong is Alphakites high wind version ?
2) D'you do the cutting yourself ?
3) How did you decide on the number, location, size of the vents ?
4) Did you start with a few vents and increase until you got something you liked ?
5) What does Heiko make of it ?
I don't think I'd be brave enough to try this sort of thing out for myself, but I do
applaud others experimenting like this