Easy peasy. We considered strap launching, but there were just too many negatives for us: attitude control, pushing on a string, wheel chock tango, and most of all, time spent on the ramp. Dunno about where y'all sail, but in my experience, boat ramps can be pretty hostile places. People behave badly there. They may have just spent five hours doing absolutely nothing, bobbing around on the water ... but two extra minutes waiting for the ramp makes them blow a vein in their heads. I can imagine how popular a sailboater fussing with wheel chocks and straps would be on a busy boat launch, oh, Sunday around 4 PM.
So we chose the rigid extension. It's smaller diameter but thicker wall than the trailer frame & takes a standard Class II hitch.
Gives us 7 feet extra distance. The tongue weight is a little higher on the flat but goes back to normal on the ramp. We get the mast up & boat all ready to launch. Jack wheel down. Chock trailer wheels, pull pin(s), drive forward seven feet, re-pin extension. Jack wheel up. Now we have an easy-to-maneuver, rigid
, fast way to splash the boat.