Question for those who do vinyl siding. I do A LOT of siding each year and am looking for a way to speed up the process without sacrificing quality. 90% of the siding I do is vinyl. Has anyone ever used the Hitachi siding coiler they sell? I read it countersinks and can leave the 1/8 inch gap I need b/t the nail and the siding for movement. I have a Hitachi roofing coiler and I love it. It is exensive for $377, but if it is a quality tool that works I will get it. I am also looking at getting the Porter Cable Cement Shears for $200. Anyone use these. Thanks!