Simple and rich sugar syrup

The funny thing is the "rich" is what simple syrup was. At some point it changed to 1:1 and the standard 2:1 became "rich". 2:1 simple is the same amount of sugar and water you'd have in the old way of preparing an old fashioned with a sugar cube and a little water to dissolve it.

I keep rich turbinado sugar around for pretty much everything from my cold brewed coffee to juices and tiki drinks. I like the flavor it brings versus plain sugar, but also that turbinado doesn't dissolve well if it isn't pre-dissolved.

Since a lot of unsweetened juices, like orange, aren't what they used to be, I'd never go back to simple syrup, white or otherwise.

You could also go to your store's baking and syrups section and get a bottle of Agave for an easy interesting twist.  It's also lower glycemic.

No, double 1:1 is not the same as 2:1, just make the 2:1 - easy enough. Double 1:1 will skew your ratios. Part of the use of 2:1 is to enhance the overall texture of the cocktail.

just buy a bottle of sugar cane syrup and use it :-)