I am thinking about purchasing a v-nailer. I am looking at the new Fletcher 5600 and the ITW/AMP VN2+1. Anyone have either one of these machines? I certainly would like the good and bad points of both. I am currently using a thumbnailer and have read on previous posts that after a while the nails pop out and ruin the frame. Is this true? Obviously I want my customers to not have this issue, so I think a v-nailer may be a better route. Again, I would appreciate any thoughts on either one of these machines. Best.