Steve,

Yes I did have a drogue chute, from big to real,real big. The problem you run into is getting the frt. of the foil to grab the air, so the foil can fill up, and thats because of the Zero-porosity fabric. I had three lines coming off my drogue chute. Two of the lines went to the frt. of the foil to help open, and one went to the centre. Still no consistently. Zero-porosity means that the fabric has a coating so that air cannot move through it. Zero-P gives the canopy better performance, but it also means that it can be very hard to get all the air out of the parachute during folding, and makes it harder to open. This link is how I pack the Thunderfoil, it worked better then any other chute packing. I have one more thing I want to try before I give up on the Thunderfoil. If it works I will let you know, For a paraglider it will be great!


http://precision.aerodynamics.com/ps...treme_pack.htm

Thx, Wil