Gonna set up another starter colony tomorrow and graft ten days after that. Doubtful that I'll end up with a good frame of pollen from one of my other colonies so I'm going to take an empty frame and put some pollen substitute in it instead and give it to the hive the day I graft. I have some dry bee pro pollen substitute from last year I used to make patties in the fall I was planning on packing into the empty frame and giving to my cell starter in lieu of a frame of freshly collected pollen. I know, I know it's not as good as freshly gathered pollen or even ACTUAL pollen, but the substitute should suffice right? Next year I'll have pollen traps setup early enough to harvest pollen for this application but this year I'm trying to make due with what I've got while I learn.