Actually, yes, but not recently. Back when I had my '73 CB750, I put standard Champion plugs in it, despite warnings that they simply wouldn't work well in a Japanese bike. I also used Amoco premium whenever possible.
After about four years of year-round riding, I pulled them to look at them. They were so clean that I just checked the gaps and put them back in and ran them for another four years. I never had a single problem with them.
I may just have to try them again. Here's the 1100 plug:
After entering your car's information, here are the Champion auto parts available for your vehicle.
www.championautoparts.com
They show the 1300 will take that one and another one:
After entering your car's information, here are the Champion auto parts available for your vehicle.
www.championautoparts.com
Do both models of bikes normally use the same plugs? The plug listed for both models says "Non-Resistor Type; Recommended for Racing Purposes Only". Is ignition RF noise the only problem with non-resistor plugs?
In other words, I wonder why the resistor plug isn't listed as an option for the 1100. Are the standard plugs resistor pugs?