Just a quick follow up to say thanks, The installation happened today, and the engineer suggested he put a new master socket in, close to the router. Suddenly, all our splitters join the ranks of the unemployed. I haven't done a wired speed test yet, but over wifi my speed tests have maxed out at a tad under 60, with 16-18 upload, which seems reasonable enough to me (Infinity 1 would be overkill for our current needs).

Anyway, thanks again. I only really pop here when things go wrong or I ave concerns. Your advice is always appreciated.