What route are you planning?
m1 a42 m42 m5 m50 a40 is that a bad idea? or i could go a38 accross that way?which way would you go from hull?
Personally, I'd go M62 onto M56 at Warrington, then join the A483 at Chester then carry on the A483 all the way to Llandeilo.
May add a few minutes on to your drive, but its a far nicer drive! Just keep on the A483 not merge onto the A470 or you'll end up in Brecon which is about 60 miles out of your way.
If you want to cut time off your journey further, I take a shortcut when going up north. When coming down the A483 heading into Llandrindo