There was a link to a presentation by the Jonkers of the design and build of the JS-3. Could not find that link was wondering if someone could post please.

On Wednesday, January 17, 2018 at 7:14:33 PM UTC-8, wrote:
You will need an ASG-33 not to outfly a V3 - but the JS-3. The V3 and JS-1c (18m) match each other with the same wingloading as seen in Chile yesterday - and the JS-3 is a decade newer than the JS-1.....

Maybe I am just biased being a South African - but I am thinking the Germans have some catching up to do in the next few years. The JS-3 is going to be unbeatable in 15m and 18m Classes - and the JS-1c will still be very competitive in the Open Class in any competition. This advantage will be even greater where wingloading is a factor (strong days) and especially where it's weight that's limited, and not wingloading (like the Sailplane GrandPrix).