About entering behind the seat
Many rescues that are still popular were invented long before kayaks had large cockpits. So you had to hop on the back deck to slide in the ocean cockpit. Many people like me who are tall can't go in butt first in any boat. The world has evolved so the sky's the limit on rescues.
If I do a paddle float reentry, my favorite is jumping on the back deck and swiveling around on my belly and sitting on the back deck cowboy style - then sliding in that way. It avoids that typical turn over that has to be done when many people capsize. The down side is if you carry your spare paddle on the back deck it presents an annoying problem and uncomfort zone. Good reason to carry a GP spare even if you hate it.
If you can enter easily forward of the paddle right into the cockpit, I would do that too if I could.