Well as some of you know by reading a few of my posts i bought a matrix back in december and i have loved the bow. The bow holds and shoot phenominally. The only part i have not liked about it is that at around 60lbs it does not have enough holding weight for my liking but at 70lbs it shoots awesome. So...i did what many said you can't do and put spiral cams on it with the stock arc limbs. I dropped about 12 lbs of draw but i now have 70% letoff instead of 78% letoff and the bow peaks right at 60lbs. I am waiting on a quality set of strings that should be here anyday now but with the super twisted string and cables i have not it shoots very very well out to 50 yards that i have shot it. The draw is 27.75" amo draw 60lbs and was shooting a 408gn arrow at 261fps. Once i get good strings and play with some speed nocks i am hoping to get up around the 270 mark at this setup. With the old cams and being a little long on draw i was at 28 1/8" amo draw 66lbs and was shooting 270 with the same arrow. I haven't weighed my acc's i am shooting now but i have chrono'd them at 266fps. The bow has even less vibration(hard to believe but i noticed when in stripped the bow down to nothing) and it is quieter with a bare string than before with string silencers. If hoyt comes out with this setup next year with a smaller price tag they are going to have one heck of a bow.