Both: Left Hand Path & Corpus In Extremis: Analysing Necrocriticism.
Listened to Left Hand Path recently, then again. Newer LP too. For those new, General Surgery is a great mix of death metal and grind, taking the short paced, high speed destruction of grind with the punishing thwomp of death metal. That's right, thwomp. Band members have plenty of other acts under their belts so whole sound is very well crafted.