Are you tired o' 1/4" rods wipin' your mid power rockets all over t' sky. Arrr! With todays high thrust motors you need somthin' more. Begad! We have t' answer. T' Mid-Power Rail System. Blimey! Fit's any launch pad that will take a 1/4" rod. Avast, me proud beauty! http://bayouratrocketry.com