To David, our OP: that sounds about right. Whether you need the sails ever so slightly eased initially to create a "lower gear" to get the boat back up to speed, then gradually trim as speed comes up and apparent wind accordingly moves forward, you can only learn with experience. Some stuff you do to nurse boatspeed along (losing as little as possible during the tack and gaining it back afterwards as fast as you can) is subconscious, and depends on your boat, the wind and sea conditions, and is frankly difficult to put into words.
That's why racing is good. It shows you "real time" when you made an efficient tack, or a speed-killing tack, in relation to the boats near you.
And to Chuckles: The length of your post is perfect for a multihull tack, they take a long time. But you get your revenge on a broad reach. I'm a monohull guy by history, so a fast but good tack is to me a work of art. On a multihull, it's something to be endured so you can reach off and really get moving again. No offense intended here...;-)