I purchased a McDermott M7-2G Tahoe about 3 months ago and I really like it. I just recieved an I-2 shaft on Friday and it has improved my game over the stock 13 mm shaft a good bit. Mainly as far as ball control goes. I'm coming back after a 18 or so year layoff so I dont have a whole lot to compare it to as far as this new cool and groovy stuff thats out now a days goes. I ordered the I-2 because I shot with a Predator Z one night and didnt like it at all, it would fit my McDermott shaft correctly with no adjustment,, has the same lifetime warranty their sticks have, and had a good feel all the way around.
Some people say it makes the fron of the cue lighter and screws with your stroke. I didnt feel much of a difference and it only took me about 4 or 5 storkes to get in the groove. It just comes down to what you feel comfortable with.