The pipe builder at COP, Wade Coase, is now with Lake Louise. So COP doesn't have anyone that's really experienced at cutting pipe, that's why the pipe blows. What they need to do is get Wade, or someone else that is well experienced, to come back once or twice a month to set the angles for the walls. Email them and tell them this...
'I have a dream! That one day all men will ski on tiwns and the world will covered in powder and there will be first tracks for all men, regardless of race, color, or creed! I have a dream!'