one should never attempt a turn back below 1000 feet AGL
Far from feeling qualified to argue, I would humbly ask for a bit of clarification: would the 1000' minimum equally apply to slower planes and to the faster? 't Would seem to me that a slower plane - i.e. with lower stall speeds - could try it from less altitude? AIUI, the 1000' was for the average Cessna or PA28, but perhaps a microlight or LSA could make do with less?