My 2 Cents..
for what its worth I have only had experience with the Big Shaver. (I still use it) but I do feel like I need to supplement it with other tools. If the Williard is an option for you I would go with that.
If you choose the big shaver here are a few helpful items to consider along side:
- buy extra blades (2-3) & re-sharpen them as needed)
- Masking tape for ferrule/shaft (or the cone shaped tension-er, may cause "grove/dents" if over tightened. (Trying to get a closer shave)
- Tweeten sander.(not all house cues ferrules are flat, they may need a little work, don't get crazy and over do it.)
- Porper Mushroom Trimmer (or razor knife) - use first before big shaver to slim down any excess tip, so they fit inside easier.
- Large Bastard File - (side step the nickel shaper, it's so so).
- smooth piece of leather in addition to the cone shaped burnisher.