On Thursday, December 3, 2015 at 12:51:49 PM UTC, wrote:
Yes Thanks Bumper! I too bought a MKIV and am quite happy. Although I think Bumper might be unhappy with me, as I immediately modified it. I had problems with the previous MK II or whatever it might have been, snagging the canopy cleaner microfiber cloth I use, so I ever so carefully rounded the front point and beveled the edge of the plastic. I know what your going to say Bumper, I've completely ruined the aerodynamics of the thing. But I have to say it has stayed on now for at least 4 years with an avg of 200 hrs/yr But alas its now worn out as the yarn is completely unraveled and I had to tie it on the end (yes I am a cheap glider pilot). I was by the way the first one to ask and receive a white one! Do they come with a lifetime warranty

CH Ventus B

Ahh yes - the perennial issue of whether to tie a knot at the end of the yarn in the Mark IV. I tied a knot right at the end of my last one as it started to unravel a little but it changed the aerodynamics so that the terminal couple of centimeters or so waggled annoyingly. Then I tied a knot about a centimeter from the end and allowed the end to fray to create a little drag and that worked OK. My current one is still as delivered, hasn't unraveled yet and is performing well.