I sold my Sundowner also due to the fact I felt like it pushed me up to close to the tank. Had a C&C seat which was great but no back support which I need nowdays. It will move you back and down to boot.

I ordered a Mustang solo with backrest 79317 today to see how it is going to do on my 06 RK Custom. I believe it will do the job. I will order the passenger pillar at a later date.
Neil

 

Sundowner Solo definitly moved me closer...thinking about going Corbin, for a solo seat.

 

I love the position of a mustang solo. Had one on my RK and now the Ultra. It moves you back and lower on the ultra

 

I have the Mustang solo with backrest and it does move you back and lower on my King.