That won't last, we all know everyman and his dog is going to try and get their LGV c+e and ADR qualifications, flood the market with drivers, the rates will go back down again.
Those with experience will stay in their steady paid positions long term, the agencies will have plenty of guys for cover work.
The £70k will be £35k because it'll only be 6 months until its all sorted, then there'll be not enough work.
But Europe will be paying a better standard rate so we won't get all the Europeans this time....its not worth the hassle for 6 months work.
If the industry paid a better standard average rate we wouldn't get this problem.