I would politely suggest this is foolish and pointless.
Even if Cruz won the primary, he would loose CA by 40pts to any RAT.
I lived in the Bay Area for 15 years.
Its unlikely Trump would win CA either but he wouldn’t be 40pts behind.
Just as Trump winning the NY primary is pointless, because he would lose to Hillary there by 20 points... But this is about winning the nomination, and step 1 is getting to an open convention.