Microbore gives you pressure problems galore,it will blow switches like there going out of fashion and the flow of water is not as good with it.The only good thing about it is you can gets loads ona reel and it`s slightly lighter than mini,minibore gives a superior flow of water and is hassle free in the pressure problem department,once it settles on the reel you`ll know no difference.Mini is so reliable it`s boring.By the way i don`t use pressure switches,flo controller.