If I am doing 20mph and floor the throttle it kicks down to 1st then changes at 25mph, 2nd changes at 45mph and 3rd at 75mph
which seems to prove the kickdown switch works. It will go on the ramp later to check voltages.

If I am doing between 45 to 75mph it kicks down to 3rd no problem and holds the change to 75 when it changes to 4th again appears to be correct

Its between 25 and 45mph when you feel it should go into 2nd, it changes down to 3rd and that is it! It's certainly within the shift point for 2nd.

The changes up are smooth if driven normally, there is a little flairing if full throttle is used all the way to max rev gear change

I think I am assuming because it works in other gears cable adjustments and vacuum pressure is OK ? I will put a vacuum guage on it later.

(Assumption is a dangerous thing!)

Thanks

Des