got a pspgo at 5.70. reading lots guides posts saying to use 6.20 cfw also see some people suggest 6.60 or 6.35? whats best way to go. perminant would be good as i wouldnt have to keep redoing it every coldboot. i see diff cfw hens me pro lcfe tn ect have thigs changed in last year and fw past 6.20 can be permanent? better to go to 6.60? can psn still be acessed on 6.20? how do u tell if pspgo is 4g 5g or 9g? it came with 5.70 ofw so im guessing its not 9g can pspgo be downgraded?