Humble pie for Del.
My scepticiscm was unjustified.
I've heat treated the limb of my Ash Meare heath which went weak, I clamped it flat and slowly increased the heat settings, it started workning between 350 and 400 degrees C.
I got it light golden brown and a day later unclamped it, it's straight as a board and much stiffer than the untreated limb.
So my oppolgies to anyone I've irritated by by doubting, I now see my previous attempts had been too hot too quick with no recovery time.
Now, do I have gravy or custard on this humble pie?
Del