Painting the outside of the house and would like to know what would be best to use, paint tray or paint scuttle. Also using ladders and the exterior walls are spar dash so l need to put alot on the roller to get into all the nooks and cranies and it does not do much wall with every roll. l dont fancy going up and down a ladder a hundred times to do a small amount of wall so if l use a scuttle has anyone got any suggestions on how l could attach it to use with the roller up the ladder.