There has been much debate about RH175 being the last Leyland Olympian chassis and the final conclusion is probably here:
http://garaiste.yuku.com/reply/51588/RH175#reply-51588
I have to agree that I would have preferred the 121 to the 201 and it is very disappointing to have it deferred indefinitely. This is not a criticism of Paddy, who has done so much for Irish railway modellers, but just my reaction to the news.