DT Swiss Revolution spokes for touring? I’m building a set of bikes for my wife and I. Both are Surly Bridge Club frames, and we’ll initially be running WTB KOM Tough i40 rims with 2.8in Schwalbe tires. 

I purchased some DT Swiss Revolution 2.0mm spokes to build the wheels. But I’m now questioning if these are too light. 

I’m about 200lbs and we plan to carry some load on our bikes, mostly in frame packs. Mostly on gravel trails, 2-tracks, and similar.

I’ve never broken a spoke, even when riding the full Great Divide, across South America, or on any daily rides, using a mix of wheels with one being a 28 spoke. 

Does anyone recommend against using DT Swiss Revolution 2.0mm spokes for this use? Should I move up to Alpine III or something in between?
Yes, do not use them here.

They will be impossible to get to full tension without windup on a rim even remotely as stout as that. What's likely to result is a wheelset that could have been rock solid will have constant issues with spokes going loose.

If you want to run fancy spokes, Supercomps are about as light as make sense here, and the 1.8mm tips give the advantage of much more breakage-resistant nipples for a given material choice, which is a nice thing on a disc brake touring bike getting off-road use. 

Normal 2.0/1.8 would be the more standard choice. They make it easiest to deal with windup and get a stable build.