All you can think of is that the IFR clearance is not available because of conflicting traffic (having told us that you can't have E without radar) ---- but it is beyond your imagination that, just perhaps, the most common problem is that the centre frequency is not available on the ground.
VHF comms with ATC are available on the ground at Willy. That's what this thread was about. Anyway in the case that VHF isn't available we use HF.
Leadsled are you telling us you'd willingly blast off into class E VFR if denied a clearance, knowing that there is conflicting traffic *somewhere*
