If you do, perhaps there's something in another market similar but at a lower price point.

Lower risk all the way around.  

Some areas will have lower cap rate but higher appreciation and some will have higher cash flow but lower appreciation. 

If I can park the 388k ($415-27k) for one year at CD rate of 4.5% and then est 300k (after paying cap gain/depr recap) at 3.0% (assume CD rates lower) that interest income of about 24 months net of ordinary income tax is about the same as my current mortgage.Trying to play devil's advocate and think why selling this year does not make sense. 

The down payment might be a little higher, but it will be a much longer-term loan that you won't have to worry about coming up with big payment in month 24 and it'll be amortized over a much longer time period (probably 25-30 years), so the monthly payment could actually be lower. 

Typically, higher income areas have lower crime, more amenities, better schools.  

of those I like next door best because it is hard to fake and the reviews are easily tied to a reviewer in your community.The costs of ADUs vary significantly for various reasons including by ground up vs conversion, difficulty with lot (sloes, access, etc), finishes, and even the size (bigger typically have lower PSF).Good luck

If your current lender is open to restructuring, you could negotiate better terms (lower rate or extended term).

I used to live in the lower mainland but invested where the numbers work like Vancouver Island or Northern BC.

You want lower land cost with high rental demand unless you're a reno expert and flipper which not 1% of real investors are.