I'm a first time builder and my shearwater project is going great. This forum has been an invaluable resource. In a few more days i will be ready start glassing the boat and i have some questions. I have read a number of posts mentioning how threads on the edges of the reinforcement layers on the hull are a nuisance. Someone mentioned placing the extra layers underneath the large, main piece to avoid this problem. So, are threads really that much of a problem? Will placing the smaller fibglass sections under the larger one result in any loss of strength? Are the ridges created when doing this easy to smooth out since you cant "feather" the edges of the underlying glass? Thanks for your input!