Obviously the first section you use is the hardest...... a small block of wood to prevent the tire to flex back is useful.... we used the rim nuts.
After repositioning a few times we started to see the inner edge of the rim..... this is after 4 separete tries.
We had to use the tool to fully rip the rim out of the tire.
The rim will need a good cleaning....... wonder if the dish washer can handle this job.
Moving on to the lower half of the rim......