I found that the main shaft and feathering shaft really bends easily, even with a "soft" blade strike. I am especially surprised at how wimpy the feathering shaft is. It looks like its the same size a the one in the CPP. Fortunately, they are both easy to straighten. I like how it only takes a minute to get the main shaft out and you do not have to take the whole heli apart to do it. When MicroHeli comes out with the hardened replacements, I will defiitely get them as I did for my CPP.