When I used my walkbehind (52" JD) with a trailering type two wheeled sulky, I would either have to do two perimeters (simplest and neatest way to set straight rows) or if I did do only one border, I would have to jump off the sulky at the end of every row just after the first part of the turn to "swing" the inside turning part of the mower back a bit to make the tighter turn.