Manfred - let's not discourage Hornby and others from producing models like this. The problem with these 4-4-0s (and indeed the M7 0-4-4) is getting enough weight over the driving wheels to provide the adhesion in our small gauge. My M7 struggles with more than 3 Maunsell coaches so it's only fit for branch-line work, rather than for station pilot duty which I had intended - that's now a 2-6-4 tank. You can't pack the front of the boiler with weight as that reduces the weight over the drivers. Hornby have explained in detail that there is no real alternative to traction tyres other than a motorised tender, which the previous version of the Schools had. I'm sure we don't want to go back to that, so I'll put up with tyres for having the model in the first place. I do want some variety on my layout - ie I don't want all 6-coupled (or more) engines only. Perhaps Hornby will provide a service to replace tyres at a reasonable cost.
Of course, if you're in to modern image and like the idea of having a Schools on railtour duty with a reasonable load, you could always plonk a diesel on the back and run as a "double-header" ....