Last run I tried something else instead of a brush. I put the pollen in a small zip bag, bend a small branch/bud horizontal, and then slide the bag around it, shake it gently, sliding it in and out softly ( :happy: ) sort of brushing the pistils against the pollen instead of the other way around, and then remove the zip bag. Fans off of course (for a day), but exhaust still on. Found 60 seeds in that bud, and just a handful in others. The advantage over using a brush is that you can clearly see the pollen, so you spill very little (instead of filling a brush tip), and don't put it in the air while applying.
The pistils will start turning amber/brown and within roughly 24 hours die cause they did their job. Like so:
View attachment 436317
Later on you can tell by the extra swollen seeded calyxes.