TOM bridge usually needs around 3-4 degrees tilted neck. You can do either, tilt the heel or the pocket.
If you have the bridge already, you can measure the angle with a long ruler or string. I find it best to have everything ready, the neck, the bridge, so you can build with the real components and check the actual action you'll have when it's all in place. If you tilt the pocket bottom only, leave some overhang on the fretboard to hide the gap.
I usually first route a shallow flat neck pocket. Then tilt the template to desired degree, and route the bottom with a pattern bit along the edges. I guess you can do it all in one go, I just prefer to do it in steps to avoid making it too deep.