I have a Hobie Trailex trailer to store, carry and launch my PA-14.
When entering my PA, I usually are in about 12" of water......standing next to it, with the bow pointing away from the shore.....I just place 1 foot inside the PA, one hand holding on to the arm rest of the seat and push off/enter/sit down all in one motion......engage the rudder and install the mirage drive IF there is enough water depth below the PA....otherwise, use the paddle to reach deeper water and then install the Mirage drive.
This link will show you what Roadrunner did making heel straps...... viewtopic.php?f=11&t=49343
I did a similar mod using 1" wide NRS nylon tie down strap material.
It makes a real difference pedaling with your heels resting in the straps as long as you are not in the habit of pulling back on the existing straps to get more power to the Mirage drive.
Since I troll, pulling back is of no advantage to me as my speed of 1.5 to 2.0 mph is easy to do.