Performance Hobbies is a retailer owned by Ken Allen and located in Washington DC. They are great. Outstanding. Sometimes hard to get hold of because he attends a launch almost every weekend..... Ken delivers and better yet, stands behind his product. Ken stocks Performance ROCKETRY kits and parts.
Performance Rocketry is owned and operated by Curtis Turner. Curtis seems like a nice guy and is pretty helpful. He is, unfortunately, like many small companies, terribly overloaded with orders as his product is good. This has resulted in missed delivery promises and highly questionable business practices. I will not purchase his product directly from him any more. But I would definitely purchase his products from a STOCKING dealer, like Ken Allen of Performance Hobbies. Curtis doesn't like me very much because I was persistent in chasing him for (a) defective product that was eventually replaced; and (b) purchased and paid for product that took 6 months to obtain. Seems to me I paid him for delivery charges on that kit and wound up picking it up at LDRS. Never did get the delivery charges back.
Like I say.... Performance Rocketry generally makes good product. I would only buy them from a reputable STOCKING dealer like Performance Hobbies. NEVER direct. Caveat Emptor. You pays your bucks - you takes your chances.
ML