I made the switch to a heavier set up a few years ago my groups are better my bow is quietier and more forgiving and my broadheads fly great.now I'm going to work on getting a higher foc arrow.If i have to buy new arrows for my new bow i will try to acheive a foc of at least 15% maybe up to 20%. I too have come to realize that speed is less important than hard hitting great flying arrows. I don't feel like I'm giving up anything because when I first started bowhunting we were happy to get speeds of 220 fps,now I get that with an arrow that weighs 500plus.