for my 3 year old i want him RF and he is in a MT in my car and a Two way in hubbys truck. right now in grandma's car she has a MR65 RFing. The only thing is she says she cant undo the buckle on it, also i think im goin to have to put him FF in her car since he is close to 40 pounds. hes at 37.8 pounds. If it was up to me i would buy an xtsl so he can RF longer in her car but dont think hubby is up for that specially since i have 2 Swedish seats lol. I have a Radian 65 but im not sure if that can be installed into a ford taurus with the seatbelt FF?? and if i can get it installed in there do i use the safestop or not since hes close to 40lbs? its been a while since i have used the radian so i dont remember all the details and SIL has my manual for it. What would you get for your 3y5m old would you get the XTSL just to keep RF or FF him in i dont know what lol and what would be easier for her to unbuckle?