This is my gamble.

DSCR has other guidelines, but generally the same rules will apply more or less.

I use the 1% rule to quickly assess if a property is likely to generate enough income to cover its costs and potentially provide a profit - it's a guideline - so, don't miss out on good investment property by being rigid when applying the "guideline" to rental properties.

Did you have any ratios or % gross revenue costs to just get some guidelines on whether the property makes sense as an str? 

These are very risk gambles that should only be attempted with money you don't really care about.  

Should I gamble on this or look into how to file a class action lawsuit against the State of California and the Judicial Council?

I'm wondering about servicing these after completion on a longer term basis following a DSCR guideline as they will be rented, and then selling them in a secondary market.

A gamble on gambles of volatility moving certain ways in certain time windows..... 

No, banks do not allow a seller held second now a days due to risk and new guide line changes. 

The second home loan guidelines directly state "The Borrower must keep the property available primarily (i.e., more than half of the calendar year) for the Borrower’s personal use and enjoyment"This means that you can only book it out on STR platforms for half of the year (50% max occupancy), which really sets a cap on your max income.