E3's are a soandso, Stones aren't a lot better when it comes to replacing them on a rim.
Remember, you just lost about 170 pounds of rear tire load rating (ever wonder why wings eat tires). This may not make any difference if you and your pillion, if you ride with one, are light.
Side note: Stones were my favorite on the Wing, well, next to the Darkside tire.
Some people go their whole life wondering if they made a difference, Marines don't have that problem.~ Ronald Reagan
2012 XCT, AFR+ Gen 4, Lloydz air filter. I don't equate noise with power.
I ride with the Force.