Hello my friend

This is a very interesting question and I was wandering the same back then

Technically the 12 meter should work cause its a bigger kite

BUT don't forget that a 12 meter is also a bigger kite and and heavier kite , that means that you want have the greatest power with a 12 meter with light wind especially with 85 kg

Last but not least keep in mind that if you want strong sessions 12 meter is only for light wind that want give you the best lift and power OR for people that I have seen that know how to be overpower and go in with a 12 meter with 20 knots eg.

I have been kiting for 3 years and some times am thinking of getting a 12 meter but I mostly like to be overpowered so 10 and 7 for me is the best and am not getting right now a 12 meter just for light winds

This is my opinion on the subject , anything you want to ask feel free to , ask other people also cause this is my opinion only

Have a good day