Service advisor or tech

So I recently got an offer at a smaller diesel repair shop that works on semis the offer is 23$ per hour and they’re essentially allowing me to go either way, tech or service advisor, which route should I pick? As a service advisor it’ll be hourly plus spiffs and as a tech it’ll be hourly plus a once or twice a week night on call (75$ per night call plus my hourly) honestly I’m pretty young and don’t know what route to take any advice is appreciated! I apologize if any info isn’t being included that’s necessary