Iwas pointed in the direction of this site on another thread where I had a similar question about my 40lb 3yr old.
www.kyledavidmiller.org
Check out the site, it has tons of great info, and an extremely sad story I don't think I'll ever forget.
My ds will be in a 5pt harness as long as humanly possible.
I'm currently looking for the best place to get a regent, possibly find a deal since I have to buy two
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