Well the JRSC has been on the car now for almost 3 years and it' sbeen my daily driver. Car nowe has 71k miles on it. I've been running at 10 psi now for about a month now with no problems.
AS for internals, the ITR has probably the strongest engine to supercharge or use forced induction. Very strong crank, and the best pistons Honda makes.
The key is TUNING TUNING TUNING. In this case I owe the success to the JR electronics I was using and now to the Hondata that allows me to make even more power much more safely with even more boost. I am no longer using the JR electronics as the Hondata eliminates the need for them.