You seem to be pushing your boundaries these days
Riding back roads at night is something I have not done yet and I’m not in any hurry to start. I do plenty of riding at night but around me most roads have street lights (there has to be some advantages to living downtown). While freeway riding might be scary I would be more scared on the back roads. More chance of crap on the road and i would think anytime you get above 40mph (maybe a lot less) you are going faster than your sight distance.
Keep an eye on the tightness of your Halo band. Mine started to loosen up after 5 or 6 months and came off a few times when I removed my helmet, leaving it dangling around my neck. That scared me so I put it in a drawer and have not used it since, moving onto reflective tape instead. I’ve heard some folks use a dab of glue to keep it in place.
I caught up with a guy on the freeway once and for miles back it looked like he was wearing an illuminated vest. I think it was just a standard reflective vest but you could certainly see him for miles under the bright freeway lights. I’m going to cover my jacket with the SOLAS tape I use on my helmet. That stuff is supposedly the most reflective tape around and is used on lifejackets. I’ve had it on my helmet for most of 2009 in all kinds of weather and it looks as good as new. Even the strip on my old jacket has not come off and that has been in the washing machine several times.