I have owned 2 sets of the "China" (Kerry) covers and they are excellent. One set was for for a Lak17a (both 15/18 w/ winglets, purchased in 2013) which I have since passed on to my dad. I also purchased another set for an ASG29 (also 15/18 w/ winglets, purchased in 2014). I find them to be equal (or greater to be honest) in quality to the Jaxidia. I actually have a lot of experience with sail making, cover making, etc. That said, it is amazing to me that the Kerry covers cost around $600 vs. $3500-$4000 for virtually identical Jaxidia! It's a no brainer. I owned a pair of relatively new Jaxidia covers which came with the purchase of my 2001 Lak17a. These Jaxidia covers were purchased by the previous owner in roughly 2006-7 I believe. I was disappointed with them (albeit 2-3 years old) because by the time I got to try them the outer material had turned very brown. In fact other glider pilots asked me what was wrong with them. In the months and years that followed, this browned outer material coating actually began to rapidly break down. It began flaking off and desintegrating into an annoying dusty debris that got all over anything it touched (car, hangar and especially the glider). Each time I used the covers I spent more time cleaning the "Jaxidia cover disintegration dust" off the glider than putting them on or taking them off. It was extremely annoying as the dust would often get wet in the morning dew and dry onto the wing or fuselage surface. This was quite difficult to remove. I spend alot of time removing this flakyness from the covers in an effort to stop the problem. They still worked and are "dew"proof, but for 3-4k it was clear that the material was defective and they should have been replaced by the manufacturer. Jaxidia was not willing to entertain that request. Ultimately, this is why I bought the Chinese brand and they have been excellent over the past several years. I figured that even if they only lasted a few years they would be more than worth it compared to Jaxidia. After a few years it is clear that they will last many years! My only complaints with the Chinese Kerry covers (Jaxidia copies) are regarding the extremely cheap bag they are supplied with which has the worlds worst zipper and very poor clips that are supplied with the covers. These clips are cheap and easy to replace at any local hardware store. I have since had my dad build a new, slightly larger bag for both our cover sets that should make it easier to stuff the covers into.

I hope this helps,

7T