I had very good success shooting them in the shop. Some people complained about prematurely opening blades, but I believe this is because they weren't closing them right. Some people also complained about the 3 blades not opening right. I shot the snot out of them in the shop and never saw this..........however I still elected to go with the 2 blade heads anyhow. I am very curious to see what 5-shot wrote about them however I am not a paying member. I may join up next pay day to see what he says.