TorqueTorque says
Hmmm, I also thought it might be like that but when I heard that over half the available slots have been reserved (as of last Friday) I booked mine.
Operators that don't reserve will be disappointed.
Alikado says
Slot allocation Silverstone 2010
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"...no slot allocation until the end of February" is the Heli Air response when you phone them.
Which one is it why can some book and some cant?