Originally Posted by Ferminal
I'd stay away from them, they are all below the value you would get betting on the races themselves. Except maybe the Ardennes ones if Gilbert has a great start to the season.
e.g. Say Boonen and Cancellara are 4.00 for Ronde, you bet equal units on them both so you end up with double your money (assuming one of them wins). Then roll the money into the win the next weekend at 3.50 and you end up with your original 7.00 but with the advantage of not betting 3 months in advance.
I see your point, but you forget that if neither Cancellara nor Boonen wins RVV I lose double the amount I would have had I chosen "my" bet instead. Also your suggestion requires that you can get odds 4 at both Cancellara and Boonen for RVV (which I doubt) and then odds 3.5 on the winner for PR (which I doubt even more).
Also I get the added benefit of having the RVV winner to win PR at odds 7 even if it's not Boonen or Cancellara. Say Pozzato wins RVV for instance, I'd have him as the winner of PR at odds 7 which I can then keep or sell to limit my losses.