If the trichomes are 10% amber you are in excellent shape!! You could harvest right now, although I personally prefer to let them get to about 25% to 50% amber before harvesting --- but that's just a personal preference. Cut off a small bud and quick dry it in your oven at 140 degrees. You'll have to ignore the chlorophyll taste that comes with quick-drying, but it will give you a VERY good indication of the potency. If you're happy with it then harvest/dry/cure/enjoy the fruits of your labor.
Good luck!!!!!!!