Forestay sets mast rake
I recently had master rigger Brion Toss tune my 40.5's rig. He said that you only adjust the headstay to set the rake (How far forward or back the mast leans). You decide how far is needed by first making sure that the deck stepped mast on most Hunters is in complete contact with the step on deck. Then after tuning the rig, sailing it ,and tuning it again under sail, you may adjust it to alter the center of effort (COE) to change weather or lee helm. If you find that there is weather helm you may tighten the head stay while easing the back stay (keeping in mind that there are limits). If you have lee helm, ease the forstay and tighten the backstay. Mast bend is another issue, but involves the shrouds and increased backstay tension, which in turn increases headstay tension but does not change rake. If you have questions regarding rig tuning etc. consider logging on to: briontoss.com. Brion has an extensive site that includes a forum. He is facile with masthead, Bergstrom rigs(legend series), and B&R rigs. Fair winds, Ron s/v Best Revenge Portland, Oregon