.I Like them both as they are another tool in my arsenal.Altho most people that have used coils try to get the same feel and technique out of rotary at first and buy ones with give(me also).I feel the only thing you need on a rotary is slight damping-which can be done with soft grommnets or in the case of a plug style machine like no irons just put a little bit softer one in.Or how the bar is in a dan kubin. If you use a rotary with alot of give set on it you will end up doing alot of work stretching & going over the skin many times in bold color work as a rotary does not slap/pop the needle in like a coil this leads to scabbing that is not thick but will rescab many times over and be very dry.