Be very careful when buying a blem or second. I sell them all the time in my shop; however, I double check the top weight, I double check the accuracy of the cg and I run the ball on my determinator to ensure that the mass bias is accurate. If your proshop operator doesn't do those things, don't buy it.
You are right; however, that they can save you a lot of money. I have several that I shot 300's with and they're great. You just have to be able to trust the seller.
