I've got "old school" standing rigging (read WAY less mast rake) on our H16 because we don't race the boat and use the boat primarily for what you're doing. While rake significantly helps pointing ability, IMO, it only hinders all other points of sale. Our stick's straight up compared to race position for beam/broad reach speed trials.

We travel the jib all the way out, travel the main out 1/3 to half way, trying to find a main traveller position that will allow one arm's length of gust dumping ability and not stuff the bow. Carving up and down the puffs to maintain a constant speed is difficult, at least on the 16, because you can't look over your shoulder, or behind you, to see the puffs coming for fear of stuffing the lee bow, you just have to react. Depending on wind speed (and for you to get to 25 knots) your crew weight will need to be between 450 & 550 pounds. How will you keep a double trapped crew on board? We use a line from the stern to prevent crew falling forward in a stuff (chicken line) main concern would be is your crew experienced enough to find the right trapeze height and agility to not be washed off when slammed by a wave at that speed. Also crew needs to anticipate major and quick course changes to avoid pitching in puffs and in order to maintain control of the boat I've found I cannot trapeze and maintain balance. I'm at the rear corner steering, eating water, trying to maintain vision.

Best of Luck