I would not shoot black cloud in a ported choke tube or one that strips the wad. Federal specifically says not to use black cloud in these chokes as barrel damage can and has resulted. I know of one guy that the pictures are posted on here. He had an issue with black cloud ripping the end off his NEW 870 barrel, the jury is still out on who was to blame, the barrel was sent to Remington and then to Federal. It appears that the reverse wad configeration may have caught the choke and tried to turn inside out in the barrel. this was not even a ported choke but possibly a little loose or misaligned enough that the wad caught it.
There are a couple of post here showing black cloud wads. it is actually very hard compared to standard wads possibly to keep the cutting edge of the pellets from getting thru. The wads I have shot and found still had shot stuck in the recovered wad.
As far as I can tell Black cloud works as good as regular steel shot. No better and no worse.
If you want to know for sure, Contact the choke manufacturer and Federal. Ask them if they see any issues with shooting Black cloud in your new choke tube. chances are that they have tested it.
CPL holder since 1991, NRA Lifetime Member, DU Member, NICET certified
"For those who would give up essential liberty to purchase a little temporary safety, deserve neither Liberty nor safety.—Ben Franklin.”