Yes, I also thought the height at which the mid-fork mounting point on the Appaloosa forks is brazed on was wrong, but I managed to mount a Tubus Tara stainless model by turning the horizontal rails on the rack upside down, so that the mounting tab is above the rail instead of below, and using the lowest of the three dropout mounting points on the rack to attach it to the upper mount point on the dropout. Having inverted the rails, you also have to swap the left and right rails so that they are still both facing outwards.
This hack also means that you need panners such as Ortliebs (which I have), where the clips on the pannier completely surround the rail when the pannier is mounted, as the tab at the end of the rail which prevents the pannier sliding off the back of the rail is now on the underside. The Ortlieb panniers also have considerable adjustment available for the tab that hooks over the bottom of the rack, which is needed because the bottom of the rack is no longer centred under the rail due to the wierd mounting position needed.
Here's a photo of how I mounted the rack.
Nick Payne