In some regards the 757 and 767 are totally different airplanes (electrics -- some are ETOPS and have more stuff, hydraulics definitely.) But the nice the about Delta training is that they pair down to "need to know" items, not PhD -level systems knowledge like my previous carriers.

Put too many penguins on the iceberg, and some fall off.

Now that we're down to one(ish) FMS life is a lot easier. Turning on the radar and terrain, OTOH, that's sometimes a challenge.