I've never really had problems with grease slinging out of the 2135. The only time anything ever comes out oily is the from the exhaust port. Then again, I always oil my tools before I use them.
Oh and that is not a one sided opinion I actually do own both. The ******** works fine but why the hell bend over for what they cost when you can get two IR's that do the same thing?
Since you own one, why did you bend over?

I went with the 2135timax and 2115timax mostly because of size. both are smaller than snap on guns.
I love it... and ever since i changed all my air tools to high flow plugs and prevost push button disconnects i love it even more. Both the 2135timax and 2115timax just scream.How do you like the 2115 so far??? I make excuses to get the opportunity to use mine