grand im from yorkshire , where you from, im not saying machine plastering is better than hand balling, it has its place in plastering. done it for the last 4 years , its fecking great for pre bagged renders , 3 man gang pumping render from ground floor up to 6 th or 7th floor apartments, in about 1 half hours to 2 hours work, 80 to 100 metres , try that one by hand in one day, no chance. internals . its cleaner than what people think if you no what your doing, but i have to say once again dont like knauff , prefer british gypsum 1 coat. been on handboard and trowell 4 last month again , by have i missed that , its been a pleasure to go back to it.