Good suggestion Jesse.  It would not only provide stability it would prevent what happened to my Rhodes 22 during a particularly wet fall a few years ago. The boat was on the trailer.    Leaves clogged up the drains in the cockpit and the weight of the collected rain water lifted the tongue up.  The pool of collected rain water drowned the motor for the outboard lift.system.  It was in this tilted position for a couple of weeks.  I had to replace the lift motor.  
Joe Riley S/V Second Wind (Lake Hartwell) SC

-----Original Message-----
From: Jesse Shumaker <jesse.laten.shumaker at gmail.com>
To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
Sent: Sat, Oct 17, 2020 9:00 pm
Subject: [Rhodes22-list] extra jacks at rear of trailer for support

After my first road trip with the R22, I decided to replace the two tongue
jacks (a primary and backup) up front since neither would turn well.  I
went for a more robust double wheel tongue jack up front and it works
well.  I moved the old tongue jacks to the rear of the trailer so I can
fold those down to form a tripod along with the jack on the front.  With
some chocks on the wheels, the boat is then a very stable platform on the
land and you don't have to worry about the bow tipping up due to excessive
weight in the rear if you have someone helping out with projects in the
cockpit.  I think Roger used jacks that were welded to his trailer and
those don't have wheels since they are just for stability.  If you ever
have to upgrade your tongue jack this is a simple way to reuse the old one
and get some additional stability without having to tackle welding.  Here's
a picture of my boat with the jacks deployed.  I should have taken a photo
after I cleaned the boat, but instead you get this photo.

Jesse Shumaker
S/V Zephyr