Chapter 6 of the DRSSTC design guide is now online. The subject is on snubber capacitors and how to find the right capacitance. We calculate the needed snubber capacitance based either on known inductance or a rule of thumb using primary peak current.
Learn all about how to build a Tesla Coil in the DRSSTC design guide or jump straight to the new Snubber guide: 6. snubber capacitor