@BAS: Why shouldn't he do so? Does it make a difference if the book is located in the UK or Carribean Sea as long as they are legit and offer competitive lines and service?
I played @bet365 from time to time, but was limited to 30€ and lower pretty quick.
Paddypower never really had any appealing odds.
Boyle from time to time has some nice odds and let's you wager about 300$ on props, so it's basically the only UK book I regularly use.
But in contrast to pinnacle, I got limited pretty quick (with the exception of boyle) and they can't compete with the reduced juice lines for US sports.