Hi thanks for the input Antag, I was expecting you there !
I can remember Tim saying the closest to the JB in the BKP range is the HD. But, of course, I couldn't imagine it to be 'like' a SH4. Or maybe something like an improved 'old' JB.
Looking at what you said about the improvement the HD gave you when you replaced the JB of your jacksons, (especially the RR1 as far as I can remember) I know the HD could (or should) be what I'm looking for.
In the modern range I wouldn't consider the ceramic CS, PK MM though.
I am considering the HD first but also wanted to be sure about how those WP, NB or CR, can compare in the 4 counts I described or if the HD remains the best choice.