I have less than a 1/2 inch clearance between my Flexofolds and the cutlless bearings and they work
fine. I am pretty close to 1/4 inch from the tips to the rudder
. No problem there either. As soon as they start to spin, that distance increases fast.
Also, no need to worry about the hub to strut clearance for a puller.
Flexofolds don't use a jaw type puller. You pull it from the rear. Below is a pic of the puller.
You could also reduce your diameter by an inch and up the pitch
a little. FOF would know the calculation.
Sailing Vessel Tortuguita