I was thinking thats where I might have been going wrong.
If, say I was taking a shot that required, say 1/60th at 200mm (quick example....for examples sakes), would I need to lock the head?
I have always locked my tripod after composing, but especially with my previous cheap Hama tripod, and less so with my current Manfrotto head (390RC2), its a b****r to get the correct composition, it goes either too far one way or the other, and its still wobbly to an extent. Or it still droops a bit..lol
Which all means that using my tripod is a bit of a ballache to be honest, which is why i've shyed away from it before now.
If I just had to use it to rest, then it would be easier and quicker to use......
So it looks like I wasn't going wrong, locking the head is the usual concensus.