I do at the moment charge my multistar at 4A, which is a bit too much, the bulk charger i'm using is outputting 200w. Better than my 50w iMax 6 charging at 3A but one 4S pack at a time.
Thats about 10hours for a depleated pack !
The bulk charger is 2.5 hours.
The charge time will be the same as with the multistars as I'll be using the same bulk charger.
I do not worry about speed as funktion of sag, as my xiongda XD does 33km/h if i dont limit it in the advanced settings of the controller.
An other thing i'm looking forward to is that, opposed to the multistars the panasonic's do allow to go to sligthly below 3V where as the multistars do get unballanced when i go near or below 3.3V which is my lvc alarm point. ( tried it once, will not do this again).
I Think I'll stick with the PF's, they are of good reputation, really cheap @ 2.95€ and instead of a 5P pack of 3500mAh's I'll have a 6P pack of 2900mAh's. Its half a kg heavier , but cheaper