as the title says i need to buy a spat as its taking me days to recover after doing ceilings as i have pinched tendons in my shoulders, i am not to bad after just skimming but do an awful loft of overboard and same day skims so can spend an 8hr shift working above my head... I have speed skims but want to make my life as easy as possible all the way through the gauge... is there a big difference between the eze spat and the refina as there is quite a difference in price ?