I think what everybody is missing the point here is subjectiveness.
He is going tracking, and the H&R's just arent stiff enough.........period........if your a serious tracker. Superb daily coilover, and probably the best for the road.........but not the track.
As for all these manufacturers being OE equipment on fancy smancy cars.......they have development periods and budgets......they arent buying off H&R's or KONI's shelves.........they TELL them what they want.......they dont hand over a elise or gt3 and ask them to come back when its 'good'.
As for people fobbing off everything but their own brand...........if you read all your posts, that is EXACTLY what you are all doing. I DO NOT sell ANY suspension equipment, but have driven all of the setups available bar the FK's, my opinion is based on the 14 years i spent competing......not because i want a sale.
I buy leda for all my personal cars because i like them and feel they are the best bang for the buck.........£1500 is pennies in the grand scheme of suspension and what it means to your cars dynamics. Hell, £1500 a corner is cheap for good handling car.
That was not directed at you Ben...... Its the impression I got from others when I first joined on here deciding whether or not to buy a 172 to track and what parts to buy.
In my posts and blog enteries I have only posted information on my experiences, I cannot comment on things I havent bought or tried.....
PS... Ben I have found your posts to be most informative to me when I was searching this forum for information regarding my own 172s setup.