I have a 2011 HQ Montana 6 with leashless setup, is it possible to set up with a leash and where would i hook it to.

Yes and i would personally recommend it. In fact I include a leash with every "Leashsless" HQ de-power kit that I sell. Even with a chicken loop properly secured using a the loop-lock (or "donkey-dong"), it is possible to pull a "Houdini" on yourself and get disconnected. Finding you have a fully powered kite in your hand with no more de-power is always a real eye-opener!

I recommend hooking the clip to the kite stake loop that is in the center of the landing handle (that runs between the back lines). That way if you dump the kite, the load is balanced on the rear lines, stalling the kite.

I love and over-all recommend the HQ de-power kites, but a belt-and-suspenders approach here is something I have found to be useful.

The only down side of running a leash like this is if you loop the kite you can't spin the bar to untwist the lines.
That's why all kites that are designed to run a leash safety system attach the leash below the bar.

Point taken and thanks. I am a park and ride guy that can wait to downloop the lite at the other end of the tack. Def would be a problem on a water kite, but their closed cells, the Neo and the Matrixx have this covered with a conventional below-the bar-system

Do you fly with the brake/landing line above or below the power lines? I find it easier to grab the landing line when it's above, but then it gets caught in the trim cleat sometimes, so today I had it hanging down below, and liked it better even though it's a bit more of a reach to grab.

I've come unhooked a couple times and was able to choose whether to grab the brake, try and rehook, or pull the safety on the power lines. I guess the leash would be for the situation where you tried all that and want to release bar, but don't want to chase the kite.

It sketched me out a little at first, not having a leash, but now I like it. Jörg at Coronationindustries.de told me the same things as Andy and Acambell when I bought an M6: yes, you could put a leash on the landing line, but you don't need to and it will get in the way.

all kites need leashed for the safety of others no matter how much hassle it is.leashless reride systems can go awry once you totally release,people,powerlines and car windshields can all become victims of a kite release

With leashless kite systems, I connect my leash to the chicken loop, just in case I become unhooked and don't have a firm grip on the bar.