well done that's the right way then.
the main point is assuredness in predetermined cycling
it's possible to know the ready date for full stocking for any reef tank even before it's built, that's the fun part of the science. most people don't take time to isolate the new additions/run a dual tank setup that's a grade a effort agreed. it's what humblefish and Jay say to do, best procedure in the game so far.
if you inputted some live rock from another tank which by itself can probably run all the fish, plus a zip of bottle bac from Dr. Tims, fritz, biospira then you can't fail to carry the fish load planned, on any date that's added.