As always, personal preference/experience and aesthetics play a role in this.
I love the double paddle for solo. I'm paddling a 16 ft tandem from the bow. I bought a 9 ft Mohawk Aluminum paddle just for this purpose. Ran about $100. I take and use a bent shaft for a backup, fishing/ and easy cruising paddle.

For me, the double shines when paddling into a headwind or you have the wind at your back and want too really fly. I don't get the water problem Marlin mentioned. I use a kayak cruising stroke, not the big windmill stroke you see the racers use.

On portages the tough aircraft/ABS double acts as a 3rd leg. In camp its a center pole for tarp if needed, or taken apart, supports the tarp if there's no tree's close to where I want to set it up.

I wouldn't spend big bucks on a hi-tech paddle, at least until you see if it's for you. Some here agree with me, others have tried it, and hated it.

I mentioned experience. I'm a one, maybe two trips a year person if I'm lucky. Haven't even gone the last 2 years do too work related issues. I don't have "paddle muscle" memory like paddlers do who trip all summer or paddle on a weekly/daily basis.

There is a different series of muscles in play using a double paddle. From what I can discern, the people with the most experience seem too dislike the double paddle the most. Not all, but the majority.

Since the first few  days of a trip for me are a relearning experience, making the switch from a single bent shaft to a double was no big deal.
I workout for overall fitness, so I'm not particularly sore using either.

I'd beg/borrow/rent a double, load your canoe with your loaded packs/equal ballast, and take a few spins in varied conditions?

I got the idea a few years back from a guy I met coming out of Conk lk, heading toward Beaverhouse, while I was starting my trip.

He had a dedicated solo boat and was coming into the wind as I was riding it. He was really moving and as he pulled along side, we grabbed gunnel's and talked a bit.

He said that he was a dedicated kayak er as well. He said that while traditionalist scoff, he thought  the double had it's place in the right conditions. He knew what he was doing, you could tell by his gear/canoe set-up and his canoe handling skills.

I got a double the next spring and haven't looked back. Not for everyone, just like paddle types and gear selections.

But like most things, you won't know if you like it, until you give it a try?
Just don't spend big bucks until you know for sure. I love my aluminum paddle, I could go for lighter, but I can handle it now, and don't have too worry about damaging it, it's plenty tough and can take North country tripping abuse ;)