Been using a Terra Nova Laser competition 1 for the last 4 years. In April this year I had to get the flysheet zip replaced at a cost of £60 and lo and behold camping in the Southern uplands this week the same zip broke. This after about 20 nights use. I do actually consider it a design flaw as too much pressure is placed on the zip area in order to get the tent pitched best. I might approach Terra Nova to ask about guarantees on their repairs but might just cut my losses and get a different tent. The Laser was purchased third party so is not covered by Terra Nova 5 year cover. I have been looking at the MSR Freelite 1 which is an equivalent weight to the Laser. I am concerned however that the Hydrostatic head is measured at 1200mm for the Freelite whereas the Laser is 5000mm. Any on here using one or anyone with techie knowledge as to the waterproofing level of 1200mm in the British weather?