I have a Mk2 and a Mk2a ( was planned as back up now his and hers) and the build of the chassis of the 2a doesn't seem to be quite as high as the 2 it is still very good but not as good as the mk2

Also the cage doesn't seem as good but the new looms seem slightly better

The original cages were a damn impressive piece of engineering and i don't kno how much of a loss they made of them but the old price could not of covered it.