VMC
Ah yes, sorry, I see what you mean.
Yes, if you ask for a VFR crossing the controller will often expect you to route via VRPs. Brize are a good example where you will find they always clear you to enter and leave via one of their VRPs.
An advantage of telling the controller you can accept vectors and or requesting an IFR transit is that he knows he can move you around as needs must whilst hopefully not taking you too far off track. Of course the downside with an IFR transit is he must organise traffic to guarantee better seperation so if its busy and you can maintain VMC a VFR transit may help everyone.
FWIW I find it is best to forget the formality of CAP radio calls and just get in early with "X, for transit direct on track Z", when the controller comes back with pass your details, you can tell him with the general bull about what you are and where you are from "requesting to transit from the east of your zone VFR/IFR direct on track to z, on current heading of 060, at FL45, I can accept vectors".