My suggestions would be these:
Not in Daly City though.
1. All American Bowling and Trophy Supply - Goodman Ng
2. Bowling Zone - steve Nimmo at Palo Alto Bowl
3. Ten Pins Pro Shop in Alameda - Rick Leong
The only shop in Daly City is at the top of the hill on mission street
owned by Rick Watson and the other is Hanson Wong who owns the shop at Classic bowl. Those are the only two i know. Carmen Ratti at Serra Bowl. Carmen owns the shop but there aare a few guys who work there. Ask for Rodney Garrick who is a PBA Regional Pro. He's cool and knows his stuff.
But the top 3 i mentioned above are friends of mine i would recommend.
Every shop owner is good it's just preference and the amount of money you want to spend as a consumer.