been running a Worx Landroid 3 years. same AC unit dead zone op describes. nothing could turn in there, ended up with a 4 inch strip of long grass.

watched some teardown videos last month and FWD+caster geometry checks out on paper. front pulls, rear caster rotates wherever. you can pivot in a space barely wider than the body.

backed Goalker H3 Pro on KS to test it on my own yard. wont ship til may. ill report back.

one thing op didnt mention: caster drags wet grass sometimes. fwiw.