Lately, while WILD ing, I’ve been having this akward thing happening. When my mind is empty and nothing besides self-awareness is upon my mind, I will sometimes experiences a short-lived, yet very bright flash of light. Almost as if I would be standing outside during a sunny day for a short moment. Anyone had a similar experience?
It usually startles me and from then on- I get incredibly-hard-to-ignore roll over signals going throughout my entire body
it BUURNS! 
I get that during meditation - only gentler, longer light beams, but I got that in HI too.
All kinds of things can happen during HH - to the point you could find yourself in a completely different place! (it is a dream then
), just relax, chill out and let things pass, while keeping your awareness. I’m sure you’ll make it. 
argh, I also have terrible roll over signals sometimes! 
Now that you mention it, I think I’ve had this bright light a couple times
But it seems to last literally 1/10 of a second.
Yes! It’s incredibly short-lived, but very distinct and noticable o.o in any case, I was wondering if surrendering myself to this kind of roll over signal wouldn’t cause me to relax ever more and give me a sudden kick into things…? No? Yes? I’ve constantly been ignoring all roll over signals I get and I presumed that was the right thing to do 
Well, ‘in theory’ the roll over signal is a way for the body to check if the mind is asleep so it can go into SP. “Mind, if you are still awake roll over, or I’ll enter SP!” So if you’re able to ignore the roll over signal and don’t move, the body will think the mind is asleep and will start SP. So the ‘right’ thing to do would be don’t give in to the roll over signal.
BUT that’s the theory
I believe the best thing you can do is experiment and find out how it works for you. For me when I get the roll over signal I can’t hold onto it for long so I usually give in and roll over. The problem is I’m usually pretty sleepy so I just fall asleep. But a few times I’ve been able to roll over and fight the sleepiness and have a WILD. So perhaps in this case I could interpret the signal as the body saying “I’m ready to WILD now, if you just roll over we can begin!” 
I’ve had good success at WILD after rolling over when I realize I’m to awake on my back, so I use the sleepiness the rolling over gives me to my advantage! So if you feel like it you can always try something new, brake the ‘rules’, but pay attention to what happens. 
One other bit I’d like to add, as I too have had the short-lived incredibly intense light flashes, is it seems to happen at the onset of possible HI(for me anyways). Maybe the Dream-engine revving up, and usually if I get that, more HI of varying intensity follows shortly thereafter.