Just to add my 2 cents.
A pro at my bowling lane uses the Simple Green, alcohol and water combination in 1/3 ratios in a spray bottle. He suggested to me to use that.
I also spoke with another league bowler at the same lane who uses pure rubbing alcohol to clean his balls. Apparently, rubbing alcohol doesn't adversely impact upon bowling balls.
I've been using Ebonite Engerizer on my balls. The only problem I have with the Ebonite cleaner is that it doesn't clean track marks very well.
Billy