[Rygar]

I've been busy lately and I'm just recalling from memory, perhaps I'm wrong. But to say the spell description alone is evidence is not solid proof (the spell 'memory blur' is only a chance to succeed, doesn't mention that in the spell title), and that comment about constantly seems like just speculation on how it should work without in field control tests.

I agree though that unless evidence is found it stops after a successful blur it should have a chance to blur 4 out of 4 ticks (even after successful blur).