I've noticed over the years of brewing my own beer that there sometimes seems to be a problem with the secondary fermentation process, either:
a) Not working at all
B) Not all bottles stored in the same place from the same batch seem to get the same SF process finish ideally.
Anyone got any tips for me, as it's been quite some time now since I did a batch because of this reason.

I do use the correct measure of priming sugar in the bottle before I fill them. I've been told it's easier to mix the priming sugar with the beer (after fermentation is complete of course) prior to bottling.
Thanks chaps.