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Very different.  The Shift has a strong midlane, with a good hard arc on the backend.  
Looking at you signature, I can offer some advice.  First off, you have Three oil balls and a Power Machine that you call medium/light.  The Power Machine is not a true Medium/Light ball.  It can be used on mediums, but when you get to true lights and burnt out stuff, its all gonna be a way to much. If you want to add to your arsenal, look for something in a lower price point.  High Price DOES NOT equal High Scores, and you would benefit from something like a Jolt or even a Thunderstruck a lot more than a Shift.  Furthermore, your arsenal also has three heavy oil balls.  How many oil balls do you need? I know that in your profile you say that you have lower revs, but that does not mean you need three oil balls.  You seem like you may have a slight case of Ballitus Syndrome.  That is a condition that I named for people that always want a new ball, or change balls frequently.  Most of the time the ball doesnt make that much difference.  On a house shot, almost every ball is going to provide as similar reaction.    
Moving on, I also see in your profile that you have been bowling for just 1 year and have average 162 and 176.  You will gain much more from a few lessons with a good coach than you will by buying another $200.00+ ball.  

In a nutshell.  At you experience level, I highly reccomend you get some lessons/coaching long before you get another ball.  If you insist on adding another ball to your arsenal, add something from a lower line.  NOT a High Performance piece.

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