Mine were master volume, master tone, and the switches were humbucking/single coil for each pickup (IIRC, that was called the 22 option).
This can be a controversial topic on some forums. I like having several options available whenever possible. The coil splitter on my Taylor is basically useless. The EMGs in my Steinberger sounded very sad. My ancient Kramer Pacers sound great. My Ibanez AZ and J Custom split really well.
The lower output Wolfetone Dr Vintage probably have too low of output to sound great in single coil mode. Hotter pickups tend to sound better when split. Parallel offers a nice unique sound for clean work. Still glad I found out.
