I had a very successful solara project in which I kept adding wort to a carboy with a pretty thick slurry of yeast and stuff on the bottom. Occasionally I would use a wine thief to remove some of the beer for bottling, mostly for competitions. It worked well and won several medals. Eventually the thickness of the trub at the bottom reached an inch or so and made me nervous about autolysis, so I transferred the beer to another carboy and threw the trub away. Fortunately there were enough bugs in the transferred beer that it made a nice pelicle right away. I now have two of these projects going, one with bugs from several commercial sour beers and one with Bret B. I add partially fermented wort to them every so often and blend them to taste. It's interesting and kinda fun.
I don't know if the above helps with your scenario though, but I'd keep the blend and pitch it for sure.