Just came across this thread and have been on a job all week using a bunch of Timberlinx so I thought I'd chime in. I've never been a huge fan of these as I find them finicky and a bit expensive. However, here in earthquake land where everything is engineered to within a MM of it's life, they are used frequently in certain camps. Some engineers insist on a metal connection; these offer a tidy way to get a nice tight joint with predictable values. They are fussy to drill for and there are tricks, but once over the learning curve, it goes relatively quickly. Still more expensive than M&T IMHO.
