You Slick Trick lovers have convinced me! I getting some. BUT!

You guys who have used Slick Tricks . . . any discernable flight difference between the standard 1" and 1-1/8" Magnums? I'll be using the 100gr at Elk, bear, deer and want the extra cutting width. But is there a trade-off in grouping accuracy?

Also, I read a review where the guy said they made a whistling noise when he shot. ??? Really?

(JUST 16 DAYS 'TILL OPENING ANTELOPE)