First off, yes I have a Regent but it is a huge pia to get a good install short belt path in my 09 Outlook. Anyway we have moved her to the turbo booster full time. Forgot to add she is 7 years 4 months, 52 pounds and 48 inches tall. She sits very well, but it sits very upright even with the seat reclined. I would like to take the back off and see if that works better. Would you be comfortable with a 7 year old in a backless booster?