At more than 13g I'm not sure that, "a new day will dawn for those who stand long, and the forests will echo with laughter"... after experiencing that. 3.4x10^

At more than 13g I'm not sure that, "a new day will dawn for those who stand long, and the forests will echo with laughter"... after experiencing that. 3.4x10^7/(500)^2 = a m/sec2 For an 8min20sec flip time. 20+g if you really want the 8min.