Sounds like a plan, I'll keep an eye on the thread. I'll bet Lincoln sure is happy to show off all those greens and make his mom proud and a little nervous.
No worries on shooting a reduced dose, I've done it plenty of times. There is always next time. You need to feel comfortable with the dose too.
He very well could stay nice and flat, frequently shooting low just keeps them nice and flat for the cycle. By the time he starts rising, the pm shot will start working and if all goes right it is a nice flat cycle.
He still has the 5u depot, so even the 3u you shot tonight is more then 3 when you factor in the help from the depot.