Re the lakenheath comments above, I speak to them a fair bit and they are just as helpful as any other ATC unit.
Their initial response will be to give you a squawk then often wait for that to register before contacting you again
If they think you are going to impact their zone they will often give Matz penetration without asking, even if you don't need it
There have been a lot of large planes around there recently so far better to speak than not
Enjoy the flight