I was wondering how many people got to toss thier insulin once out on tour? Step down to metformin or do away with it all together?

I know when I can get in atleast 40 miles on the bike, I can drastically reduce or skip my shot of lantus at night.

Still working full time and helping my ageing dad cuts into my ride time. But I'm hopping to get out on the road next spring for a long term tour and looking ahead to what I will have to do.

Thanks in advance for any help or tips you can give.

Wayne