Thanks Nicko,
I'd tried the single piece and it just didn't work, too hard to sand a taper on it.

Wokka
the Black was OK, considering it is from Sonor, which is the German trading name for Jinan Xuqiu Musical Instruments, The Yellow had the same issue as this the PBG but only a third as bad(about 1mm) as this Kit(3mm). The Yellow is from Sonor Kit supplier.
It seems to me that they only really threw this kit together without really thinking it through. the Heal on the neck was as rough as guts. I mean the back edge was lob sided by a couple of mm. and Still is. This neck will never go right the way back into it's pocket. Which probably explains why it steamed appart so easily. I am planning to put a lot of glue into it this time around, as I need to reduce the small gaps around the seam of the join.

Cheers PK