@Penny, @MisterW, @MatthewWheeler, @willcutforth
Migrated out a domain from plusnet, Had a bit of a 'dabble' with DNS in the process (because I could). Did some rather odd-ball testing, got some rather oddish-ball results. I'm not unhappy with the hosting recommendations. A little more money spent (extra domain(s)) to gain some further learnings.