Iakklat's method works well on the 340, too! I use a gate of 10 miles, 3000', 200kts and aim at that.
Don't know about the 330, never flown them, but I'm not too enamoured of the 340's vertical nav. Usually starts you down far too early, then eases off the ROD too much and ends up diving at the 1st constraint - usually missing it too unless the pilot intervenes. Technology, eh.....!
Which goes to prove - don't get too immersed in the automatics, just fly the bloody thing.
