at the end of the day it all comes down to the cost of the product,british gypsum will have an awful lot of money/time/research etc accounted for so far in this product,when they finally sit down and decide how much to charge all this investment will be taken into account and the price will take all this into consideration, personally i just can not see it working ,i can imagine it will be diffucult to use suction/spreading/trowelling up, and i think after about 2 years it will be dropped, this period of 2 years is important as it gives gypsum time to sort out any teething problems /plasterer complaints /concerns, but at the end of the day no matter how hard they work to deal with these isssues ,if the plaster is not selling in the quantities they need to justify there investment it will be quietly dropped ,and peace and karma will return to the plastering world.