Excellent that the SR fuses are working their magic for you. Actually, I've been meaning to track down the fuse info as employed in my Sony HAPZ1-ES, sounds like you can help in that regard. You mentioned replacing 2 in your Sony with the Black's, is that the total fuse count? And if you have it handy, can you specify what the fuse values are (or which SR fuses you purchased)?
Thanks very much!