[adamcal]

for me:

609 black is too dark

409 is OK but needs a bit more highs

609 sliver is OK but needs a little less highs

and the 906 can be made to sound pretty similar the older ones, so is the most versatile choice.

the 906 in Flat position with a little mid poke would be more like the 409

PS, I use 609 silvers on toms sometimes and quite like them.

also remember the 409 was a $400 mic, the 609 a $89 mic.