May be OK
Your rig shroud tension sounds reasonable. Is there any slack on the lee shrouds when your boat is beating hard to windward? If there is, then your tension is too low, and you need to increase it. Get yourself a Loos Rigging Tension Gauge. That way, you will be able to tune your rig more effectively. As far as mast rake goes, here are my thoughts: If your boat is balanced now - not carrying much weather or lee helm, leave the mast rake alone. If you have excessive weather helm, rake the mast forward slightly, and the opposite for lee helm. On my own boat, the mast was originally raked back by about 2 degrees, and this caused an imbalanced weather helm situation. I was always fighting for control as it was trying to round itself into the wind. I had to have the head stay shortened to correct the problem. Good luck!DonS.V. Anodyne