Difference between 2006 and 2008 Callaway Big Bertha Irons?

I’m new to golf and the Callaway Big Bertha irons feel good right now, but i’m not sure what the difference is between the 2006 and 2008 versions are. Is it just in looks or what? Please help me!

2006 big berthas are less forgiving and hit the ball a little shorter distance then the 2008. Looks are another thing, but the big difference between the 2 clubs are the feel. In the 06′ models they put a firm grip on the club and the 08′ has a softer feel. But if i were you i would just go with the 06′ because you are new to golf and you should not go with a top notch set.

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