Hey mate
I have a quiver of 2013 Ozones (9m, 11m, 13m edges & Zephyr) and hit the scales at over 100kg.
I found the following 2 posts very helpful when learning to get the most out of my edges.
As far as boosting goes, definitely the 9m and 11m get me higher than the 13m, but sometimes it all comes together and you still can get scary high on the 13m on a good day

AKS post;
www.seabreeze.com.au/forums/Kitesurfing/Newbies-Tips-Tricks/How-to-get-HUGE-AIR/And in particular Rusty' post - edge specific, this works for me;
www.seabreeze.com.au/forums/Kitesurfing/Review/2013-edge-range/ "boosting on an edge is a bit different to a lot of other kites..with the majority of kites they can be throwen from quite low and once you get it heading in the right direction you can just pull in on the bar and up you go...I have tried to discribe what i do below, being 100kgs i have no trouble holding an edge and as i have mentioned heaps of times already the being able to hold your edge with your board is quite critical to getting the best out of and Ozone edge when free riding or in the surf.
So i hope the explanation helps..... position the kite beteen 10:30 and 11oclock....try to have the bar fully out and build tension in the lines using your edge..... pick you spot to boost .. a little wave or if in the flat look at the spot you gonna start from .. build speed and line tension ..when you hit you spot .. turn the kite agreesively to between 12 and 1 oclock.... dont let it go past this point and leave the kite facing that direction.... as you throw the kite edge hard up wind..... when you feel yourself about to be lifted from the water push hard on your back foot..... the bar is still fully out at this stage... as you lift into the jump and start to slow ... pull in on the bar.... when you get to the top of the jump start to gradually turn the kit forward .... then at the last couple of meters pull hard on the bar with your front hand and point downwind and presto... smooth landing....
Things that stuff up a jump
not holding an edge... your board flattens out and you get pull sideways and loose the tension in the lines.
Throwing the kite from to low ..... results in low jump and a big downwind loss of ground.
Similar result from throwing the kite to far . and its impossible to land nice.
Turning the kite to slow.... lack of height.
pulling to early on the bar.... lose the ability to get extra lift from the speed you build in the kite and lack of hang time....
Turning the kite forward to soon..... lack of hangtime.
Keys to success
Got to be aggressive.... leave the bar out and only pull in once you are airborn... build as much tension as you can before you boost without losing your edge....start the kite quite high and dont throw it to far past about 1 o'clock....leave the kite facing back until you start to drop... and very slowly start to turn the forward then dive agressivey late ......
hope this helps"
Cheers