over the years for me, i have always found when choosing a lexan body whether it HO slot cars, 1/24 scale slot cars and 1/12th scale RC. lite and thin was the way to go.
they seem for me to handle best hands down, and seem to bring out the best performance no matter what i have run over the years.
however, the thin bodies tend to wrinkle and tear easier from wrecks/hits.
the thick bodies tend to crack easier especially around the front wheel wells from hits and wrecks.
the only reason my current 2 bodies (Zytec and Parma Speed 8) are thick, was due to our local hobbyshop having a hard time getting the thin ones.
even online stores have problems keeping the light ones in stock. when they come in....they're gone
Note: not a shameless plug. checkout speedtechrc.com or kthobbies.com. they usually get the thin bodies and are 9/10 times when i check them...out of stock.