Just wading in waist deep into this one but, I thought Centrifugal Compressors were quite a bit stronger than axials. Will happily stand corrected on that one though.
Furthermore the PT-6's on low wing a/c all have ice-vains/inertial separators. Garrett's answer to this is flipping the engine on it's back
I fly Garretts, but I wish they were PT6's
I miss the PT-6
j3