Go ahead and do it. You won't regret it.
I installed the RKT head on my 2009 M1000 LE in early December with 2200 miles on the engine. I already installed the MBRP can, Speedwerx Y-pipe and Shift assist last spring. I replaced the piston rings when the head was installed. I now have 2800 miles. Throttle response was a huge improvement. Running it on Stock fuel pressure, stock air box, stock pipe, stock gearing and stock clutching set with 80 gram weights. I change gear case oil every 1000 miles. Most of our riding is between 2000 and 7000 ft.
The sled absolutely rips.
Pull the rope, let it warm up and ride hard all day.