See my earlier reply where I linked to TBB's FTTC speed/distance table.
At that distance you should get high 20s.

You currently have decent speeds so not that much to gain.
Also see my earlier reply about if you currently have a problem that needs fixing...

Hi baby_frogmella

I've been looking at all options and Talk Talk Business was one of them. b4dger has thrown a few pointers for me to mull over so I'll think about it over the weekend then make my mind up. Thanks for the offer of a cuppa, might take you up on that. Haven't really seen fibre in all it's glory yet.

Caley.