I'd test mine but it wouldn't really give any usable reference point. Since I've owned it, through every other MF and IOS update, my DL1608 works great "sometimes" while other times it requires reboots of the ipad, a different iPad altogether, reboot of the mixer, reflashing of the iPad, wireless connection with one iPad first to get the other iPad to be recognized in the dock, etc, etc.
Unfortunately at this point the only thing I'll be testing with it is the the resale market.