Guilty of both charges, the latter being tongue firmly in cheek. As stated in the early reply, the tumblehome is improved but the underframe is still too wide. That does not apply to the suburbans which (fingers crossed) are as perfect as can be, being based on brand new mouldings. Might regret that statement as I am sure some smart Alec's will be looking to see if they can prove me wrong.
I have said it before, and I will say it again, that the response and enthusiasm of the Hornby engineers has been a major factor in the quality of these and I would not like to take praise away from them.