The SoloRight instructions cleary indicate that you should use a righting line that leads from your hands, to both the front and rear of the boat. The Hawaaiin system can be lengthened to accomodate SoloRight use. It is not to be used with only a single righting line from the boat.
I have recently procured a Nacra 6.0 that I will SoloRight with the SoloRight capsize recovery system. Does anyone want pictures? Or will you take may word for it?
To date, the easiest boat to right with the SoloRight was the Prindle 19. The most difficult was the Msytere 6.0. Hobie 18, not bad.
The Hobie 21SE was a pretty good challenge, but that prototype tool was designed for use with assistance by a second sailor. (Even though the boat was indeed righted by one man without assistance!)
No matter what system you use, be sure to practice and to know your ability.
GARY