No, I must say I didn't try them with only one blade open. Because alot of my customers requested spitfires, I put them thru a " 5-shot" test, only alot worse testing than he does, which included shooting into barrels, cement blocks, blades open, blades tied shut. Many customers swear by them, so for the best test , my shooting staff and I used them on deer , bear, turkeys, fox, and one wild Russian boar. Not one complaint in 3 years of use, in any department, including accuracy.