According to Trossi in this
thread, after his close inspection on the WCF12 hardware, he noticed slight 'warping' which may be the cause of the transient signals found on some of these cards. Check this
thread for more details.
So I am just wondering, how many of these cards are defective out of the box? How likely will problems arise if we keep swapping these cards in and out of the CF slot? Hopefully this poll could serve as an indicator of how reliable this WCF12 is.