Thanks for all the useful replies, and yes I may be around to try the SBs in the nets on 24th blindowl - thanks.
I have a new `NB 1260' from Fleabay that appears to be short blade. However, I really don't believe it is genuine given the very low price I paid (around £30) , even given the £299 rrp price label that the seller put on it (!). When questioned before purchase the seller said `friend sent it from India, think it's genuine but can't guarantee it'. Hope it's not a forum member, apols if so...
Haven't dared give it any net time yet in case it turns out to be one of those cheap veneered Kashmir copies (I don't think it is).