Yes the FO travel covers are good, mainly for the YKK zipper. I've had a an old board bag (not a FO) that used a YKK zipper and brass slider (i.e the same as on your wetsuits) and a similar polyester exterior - it's lasted 20 yrs (I've had it reshaped). For me its always been the zippers that have failed - spiral with an metal zipper - fails every time no matter what you try and cover the slider with. Plastic sliders are too weak and wear quickly, meaning the zipper won't close. I really like the prolimit board bags in regard to the side wall shape and padded tail, however it was let down due to the zipper and reflexive bottom material degrading quickly.
Marco, thanks for tunning in, some feed back

Travel cover - What about adding a velcro flap to cover the fin slot. Handy when you are traveling over seas and you want to keep it fully closed. I've added them to mine. Keep the bottom colour light to reduce the heat. Personally I haven't had a problem with the white plastic bottom material on the board bag range.
Board bag range - the zipper, the sliders still corrode and seize. A YKK zipper and slider like on the travel cover range would be a winner. I like the reflective nature of the white plastic bottom and haven't had a problem with it. As per above, a Velcro flap for the fin slot would be good to.
Other - Windsurf roller- fantastic product, best out there. I would love to see a 250x70 bag added to the range. This would capture the free rider traveller. I have both the 240x60 and 265x80, however a 66-68cm wide board sits in no man land and you pay the extra weight for no need with the 265x80