Thank you all for your replies. You have all given me a great deal to think about. Based on riders who have used the Cloud, it sounds like that may not be a good choice. It also seems like moving to a foil board may save me in the long run based on a LOT of replies here. Again, I'm not apposed and would love to get there, but I am limited by space in my vehicle and those take up a lot more space then a TT.
So here's what I've concluded are my options and correct me if I'm wrong.
1. Keep my 12M Rally and only go out when the wind is blowing 9 knots or greater.
2. Buy a 12M Foil kite (Soul or Pulsion) and ride in 7-8 knots. A 15M may be needed for this range. I also figured that a directional type surfboard such as the Nugget or Sector would also keep me riding through any lulls at this wind speed.
3. Buy a 12M Foil kite (Soul or Pulsion) and combine with a foil board to ride in 5-8 knots. Figure out how to transport the board.
Additional thoughts. I really like the quality of the Soul kite but it sounds like the Pulsion is lighter and more likely to stay in the sky in lighter winds. Any comparison between these two kites? I presume the Pulsion is a lighter fabric and thus less resistant to damage. Does the Pulsion actually have a lower end or just less likely to fall out of the sky when the wind drops?