Just a couple of hints for guys getting the T4.

1. This has been common for quite a while, but put a spare set screw in the unused hole in the rear uprights, this will help strengthen them in impacts.

2. The ball studs for the upper clamps only have 4mm of thread, this is fine if you're only going to use 2mm of shims (which makes the inner link the same height as the T3'12 with no shims), but if you ever want to add more you're going to be running a dangerously low amount of thread. I would suggest 6mm ball studs.
They do stick through with 2mm but easily clear the outdrives so you can remove shims as well as add them.

I haven't gotten around to the bumper section yet but i already have a few idea's to strengthen the part where the upper bumper mount no longer touches the bulkheads.

Skiddins