Idecided to try the 100gr 3 blade this year.

So far shooting at targets they have flown pretty good, dead on left and right with my fieldpointsbut about 2" low at 40 yards. I have 6 headsand all weighed in a little over 109 grains, soI wasnt worried about them coming in a little low. As for grouping, they have been doing good enough to ruin vanes. The penetrate pretty good. Shooting into my block target they go in about the same depth as my 100gr 3 blade Muzzys but not as deep as my 100gr Wac Ems.The Wacems have the smallest diameter and a cut on contact tip so this is not a suprise.

I have not had the chance to take an animal yet but I have noticed a few draw backs while hunting

The blades tend to come loose after riding in your quiver. They snap in place by a small protrusion of the blade going behind anoring but it is not real tight. Several times as I went to nock an arrow and1 or 2 of the blades would be loose and partially deployed. I also spot and stalk hunt and if your arrows is nocked and even slightlybumps a branch the blade will partially deploy. You have to be very carefull I tried to shoot at my target with 2 blades partially deployed to see what would happen and it was not good. I shot 3 times, all 3 hit more than 4" off.A different way each time at 30 yards. The arrow flight was very sporatic.

I hope this helps I think they are an good head you just have to be carefull. Next year I will go back to my WacEm unless something else catches my eye.