well, 4.5hrs to solo - maybe. My instructor was honest and told me he could sent any chipanzee solo once they's sussed the circuit, but he said he wouldn't send any of his students up on their own until they had mastered a flapless, short field and a glide. Damn I thought, more hours....am I being tucked up here???................ Sure enough the chap in the circuit in front of me on his 1st solo had a flaps failure. He made the circuit and safe landing. Lucky for him we shared the same instructor. Moral? I'd rather have gone solo at 25hrs and been properly trained than thrown up in the air at 10 hrs in the hope that nothing went pear shaped in that magic 8 mins....
PPL now in 57 hrs. Same instrucor now required for my IMC.