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The existing diode scheme is alright for a relatively small cap on the output, but not a large one, unless I use a power transistor for the one coming from the op-amp's output to the pass tranny (I'm sick of blowing up BCX38C's, so currently I've a BC137 strapped to a BC550 as a power darlington), which is better, but still limited in terms of what it can protect against. I could just use a Schottky in series with it I know, but it might cause the same nightmare problem where it interacts with the current limit and gets stuck in a destructive loop, ......................