Rejuvenator oven temperature adjust up to 150. I use hot water until I bought the oven. I also used my kitchen oven and a thermometer at times. They all take oil out of the ball, just in different ways. As long as you are careful you will not damage your ball using either method.
I believe that surface condition is too often overlooked in favor of oil extraction. After 20 games 4000 abralon is not 4000 anymore.
Those that can do. Those that can't complain. Pimpin ain't easy, but it's mandatory.
Most things we like, we don't need. Most things we need, we don't like. Don't confuse your likes with your needs.