Did the same thing last summer when i had 6 stitches on the side of my big toe and couldn t kick my foot in.My error was not leaving the heel piece and the liner was sliding out when coming out due to drag.
I left the first buckle where it was near the toes and lowered the second one.While testing on dock,coming out of it was as easy as my regular RTP.It was very comfortable!
Other then the liner not staying totally in on getting up,i liked it a lot!
On my next try,i will leave the heel piece in place but will cut the cuff like a shoe,lower then your.
Having no buckles at all to tighten the toes doesnt appeal to me...
Congrats and keep improoving it!