Been riding about 50 years and to me it is just normal to run it into reserve virtually all of the time. Doing more long distance riding now an exception is when I'm on the western freeways. There isn't always a station out in front of you within the reserve distance so possibly I will fill before hitting it, all depends on what is out in front of me.
But the above concerns are real and the very simple answer is to use reserve, not avoid it. If I'm in one of those potential situations then I just switch to reserve early, why not?, there is no negative consequence. You still get the full amount of fuel. When you switch to reserve early it is essentially the same thing as a low fuel warning light. You're not going to have any instantaneous lack of fuel emergency, you just need to get gas in the next 25 miles or so. MPG can vary greatly from all kinds of circumstances and there have been times where I may be concerned about fuel in traffic, maybe a construction zone or accident backup, I might just temporarily switch to reserve to be certain there won't be a problem and then when I clear the traffic I'll switch back to the main.
I use reserve liberally, just switch to it early and you don't have to worry about it sputtering. If your using the odo to fill at 130 then instead of filling switch to reserve at 130 and get gas when you can, no worries.
05 1300R -sadly sold 04 BMW K1200LT - Luxury Tourer, smooth efficient quiet power,sporty mile eater 05 BMW F650GS - rugged and elegant adventure tourer, does it all well, high speedcruising to rough dirt roads
IBA: SS1000,SS2000, SS3000, BBG1500, 50CC, UCC, LGL1000, 4 Corners