Yo, just a heads up to you that teather launch,
I watched a visitor last week at my local go for a ride up and across his land cruiser bonnet, with a bit of bull bar rash thrown in ,after grabbing his Kite I noticed his teather leash was really long,
FFS you'll act like a pendulum if the Kite takes off, you should have just enough room between anchor point and clip to comfortably clip in
He said he'd seen it on you tube videos hence why he set it that long, checking through some instructional he's correct most are showing a much longer than reqd leash,
Always keep an eye on the Kite, a teather doesn't guarantee your kite wont shoot up through the window, especially in strong / gusty wind
We've had a life changing incident because of this this season, so worth a mention ,