Here's my problem.  I have one of the releases where I have to many revs, not enough ball speed for a 2nd shift league we bowl on a competitive league.

Now, I can pull out my pink hammer, as I did last night and shoot 690 off my 205 average and the team wins, however, my other left handed teammate will complain the whole night because now he also has to throw urethane or plastic after the 1st game as I have carried down enough oil that he cannot get his reactive ball to finish through the oil line I have created.  I get comments like "why do I even bother to bring $500 worth of equipment in the door when you ruin the shot".

Now I can start with my very weak reactive, and use my "C" game and struggle to bowl my average but my team mate won't bitch because he can use his $500 equipment and hit his average.

So do I struggled and work with my "C" game, or use urethane and my "A" game and just deal with the gripes?

I agree.  Tell him to welcome to a small taste of what it's like to be on the right side.  You learn to avoid other people's tracks and just adjust as needed.  It's just part of bowling for righties. 

There can always be a compromise.  Depending on how the shot starts can dictate what you both can throw.  Especially being a second shift where you might have zero lefties before you or perhaps five.

Working together will make the combined score of the two bowlers the highest.  Perhaps move to urethane a little later in the night or something like that.

Just didn't want to pile on the other bowler.

I bowled with a teammate that could only throw plastic and he covered 30+ boards at 10 mph.  Needless to say, some nights we had some interesting shots.  And this was on wood.  If you can work together on the shot, I am sure there is an answer that suits you both.

......you never know what you will face lane condition wise each week.  Part of the challenge of the league.

Tell the old college teammate............embrace it!