Carbon props Foxtech

Just got an email from Foxtech about some new props they have. 22x8 carbon props, with best prices i’ve seen on this type of prop. Only problem is mounting, I really think the standoffs should be redesigned to screw on props in at least two spots so they don’t slip. Four would be best. I replaced couple props yesterday and had this happen to me, one prop not tight enough, it’s always a worry to over tighten and strip the threads on these standoffs as has happened to two of my standoffs.