I have done this kind of modification more times than I can count. The key is a good, SHARP carbide tip blade on a cut off saw. Place your stock forend top against the fence, making sure to keep the barrel channel true to the fence. That way you get a good square cut. I use tapered wedges to locate and brace the forend and clamp it to the fence. Be sure the stock is tightly held. I don’t know which Boyd’s configuration you have but sometimes a straight edge on the tapered wedge if required. Whenever I can I prefer the cut to go thru the forend and the wedge. Less,if any, chatter. You can cut the tip at an angle for different configurations. One use quite often combines a 45 degree toward the butt end. Then a 10 to 15 degree starting a short distance down from top of the first cut, angled toward the butt. Then finish by sanding in the cuts to blend with a slightly radiused point where the two tapers meet. Take your time. Make sure your set-ups are tight. Keep in mind that the laminate sands very easily. Also I usually only do this on Boyd’s stocks in their Satin finish. If you use Hunters Satin from Brownells Gun Sav’r spray, there will be no witness lines. Practice on another piece if you can. The configuration of the tip can be whatever you want.