[Sneeke]

Here is technical instruction with tests results of 15bis and 15 (in russian):

http://ifolder.ru/14608804
http://www.megaupload.com/?d=KCEHTIB2
http://rapidshare.com/files/296010081/m ... o.zip.html

And some charts from it
1. Best climb TAS


2. Climb IAS by H


3. And climb vert speed


Subjectively I got close results in time to height tests on full real settings.