I have been shooting them for about 4 years now ,and have never had a bit of problems with them, I shoot the 120grn. 1 1/4" cut . they shoot same as field points ,and do a tremendous amount of damage, makes for easy tracking.
deer usually go down within 20-30 yds. or less depending on shot placement.
But I do recommend changing the bands every year ! always buy fresh ones and keep them in a air tight container,
and out of the sun.
oh btw I shoot the 2 blade.