Well,
very helpful VM engineer came today, and I started my speel about wanting to hold on to my vnmg300 so that I could revert bck to my 50MB setup if I wasn't happy with the superhub. The guy stopped me dead and said "your vnmg300 will take 100MB if you want me to set that up?
I was surprised and agreed immediately
5 minutes later I have 100MB service, with vmng300 and my Netgear wndr3700
this is through my router and wireless.
Funny thing is that I had to use the paris server to get above 50MB on speedtest.net, but the Virgin speedtest showed great result and ping was 15
Speedtest to Paris was 79MB, others were 45-60 in UK weird