Yeah I also only look in single star systems because depending on the distance between the stars in a binary, trinary or whatever and their orientation the 'deep space' zone can be so far out/up/down that I can't even be bothered flying out to work out exactly where it is. Also superstition, which has a part to play in anything governed by RNG obviously.

I also make sure I'm in the highest population system I can find that also fits whatever other criteria are applicable for the material I'm looking for.
If an hour and 45 minutes was usual for me, I wouldn't have remarked on it. The previous worst I ever had was just over an hour; the entire reason I posted about it on here at the time was that it was sufficiently unusual I wanted to make sure it wasn't a bug with the latest patch. The point though is that it can happen and critically, that
we have no control over whether it does or not. It doesn't matter how much knowledge we may have, or how much skill, or experience, if the RNG decides tonight is a good night for ing up your back and telling you it's raining, all you can do is say
'Thank you Sir, may I have another.'
All of which is why as a gate for high level content (for want of a better term) it's really not one that I'm fond of and why some
proportionate revisions to the material broker exchange rates could greatly assist in curtailing its worst excesses.
Incidentally I've found two HGEs inside 20 minutes tonight, doing exactly what I was last night. For the above reason though that doesn't diminish my point, it actually illustrates it.
Oh and as for your one in a shipping lane, the best I've seen since 3.0 went live was dead ahead of me right next to the star as I jumped into a system, I was like
'Oh OK, go on then...'