Wanted to brain dump my Forms info before I lose it. For anyone about to start the forms block - it's essentially one flight that you got a half dozen cracks at before you solo. You've got to know the flow from startup to shutdown before you fly so you can focus on perfecting the actual formation positions instead of worrying about the big picture. Easier said than done.
The first thing you have to do is know the Formations NATOPS brief cold. It sucks learning it and it really sucks if start the forms block immediately after finishing contacts or instruments. Still, find a way to get it done because it's required and has a bunch of the big picture items, like emergencies. Start learning it early if it looks like you're going to get pushed through. Ask the ODO after your aero solo if it looks like you'll be classing up for forms or instruments next.
Next, get all your FTI knowledge internalized. There are maneuvers you've got to memorize - cross under, parade-turns, lead changes, etc. Write these on printer paper in different colors and just read them over and over. There aren't so many that it's a burden, so give them enough time to make them stick.
Finally, get with your forms partner and figure out the flight. The forms stuff begins before you start the plane, like checking in on the tac frequency, so you want to be ahead of the game. If you're doing forms last, find a guy who did forms first and trade knowledge. This was the case for me and it was super helpful. A buddy walked my forms partner and I through the entire flight as we wheeled around the sim bay in rolly chairs. He basically taught us the entire sequence and it was a game changer. Especially doing it in a space where you can walk or wheel around to get an idea of how the area management works. For trade, we did a bunch of instrument practice sims so he could have the first couple instrument sims aced. It's a trade you want to make.
There's only a handful of IPs that are form qualified so you want to make a good impression on your 4101, because you'll probably fly with the same IPs a couple of times. For the first forms flight, you and your partner will talk through the entire flight in the brief in front of the IPs, including reciting the NATOPS brief and talking through emergencies, and then they make the call of whether ya'll are ready or not. It seemed like this was by far the most downed brief in primary. If you show up with the NATOPS brief and maneuvers down cold, and a good understanding of the flow of the flight (sequence of maneuvers, hand signals, area management, comms, emergencies) you'll be fine.
Studying with your forms partner is essential. The way the IPs do the NATOPS brief varies - some want lead to do the first half and wing do the second, some want it alternating, some will ask you what your forms partners favorite EP is and then have you recite it.
Finally, trim cannot be overemphasized. Trim that bitch out immediately after takeoff - get the ball centered and then keep trimming once you get into position. Having a light grip on the stick is a must - an uncentered ball and and untrimmed ailerons/elevator will put you into unsafe positions. Get it trimmed, raise your seat and rest your forearm on your kneeboard and fly with your fingertips and wrist. Even put a pen inter-laced between your fingers if you are having trouble with a fingertip-grip. Relax your feet too - wiggle your toes to make sure your body isn't tensed. The T-6 will stay in position will good trim settings and a light touch.
Good luck, hope this helps.