Greetings! I'm repairing the stair railing shown in the attached pic. My issue - the railing comes off the corner of the top post (and attaches to the lower post the same way) at about a 27 degree angle. This requires a 90 degree notch be cut into both ends of the 2x6 rail - that's easy enough to do. My problem is figuring how to cut an angle so that the "V" cut remains flush with the post both on top and underneath the railing. This requires removing some wood from the underside of the "V" so the point of the "V" touches the post both on top and underneath at the 27 degree angle. I've tried a jigsaw, but blade flex prevents a good straight cut. I can't justify the expense of a good portable bandsaw at this time. Would a small recip saw with a super-stiff blade make this easier? I'm at a loss for how to proceed and would appreciate any ideas or suggestions.