This model of the A1X "Terrier" has been touted for the last 2 years as going to be "premium'. "prestige" or "ultimate", and comes at a premium price, as compared with the Hornby competitor. I, for one, am not prepared to pay a premium price for a model which is in no way superior to the new Hornby offering, or even the 40 year old Dapol/Hornby alternatives. True the chassis looks fabulous and the mechanism may be much better - the Hornby model had problems with the pick-ups, but none of mine suffer in any way.
Reference is often made in reviews to the "face" of a model being either outstanding or substandard, and it must be remembered that any tank engine has 2 faces - front and back. The coal rails on the Rails A1X bunker are a disaster. It looks as if the item has been inserted into the bunker rather than extending right around the perimeter of the bunker - almost as if it has been manufactured to H0 scale. Not only does it not extend the full length of the bunker, but it is too narrow as well. This discrepancy in width cannot be ascribed to the positioning of the lamp iron. Unfortunately I do not have any photographs of the rear end of Terriers with this bunker in BR days, but I do have a shot of 55 on the Bluebell Railway taken from above, which I hope shows how this rear end "face" should look, and gives an idea of how far off the mark the Rails model is. I'm also attaching my one and only shot of 32661, from which you can see that the coal rails are flush with the cab sides. For a model costing £110 upwards - approx £30 more than the Hornby version - it should not be necessary for the purchaser to butcher the bodywork to produce a decent result. The rear face of any locomotive is a major visual feature, as opposed to a mere detail. The bunker does, after all, constitute around 15% of the entire bodywork. I suspect, as suggested elsewhere, that this was a result of cost consideration, but this cost saving has not been passed on to the purchaser.