So ive read up quite a bit about open jaw and stopovers.

Trip 1
WAS-PVG
SHA (other shanghai airport)- HKG
BKK-WAS

this seems like a Stop over and 1 Open Jaw (Correct?)
Total miles 195k for both of us.
we also pay for the flight from HKG-BKK (total- $230)

then I looked it up apart
Trip 2
1st Part - 65k Miles
WAS-PVG
2nd Part - 95k Miles
PVG-HKG
HKG-BKK
BKK-WAS

Same Dates Different times, this way I would save on the Cost of flights from Trip 1 which would have been from HKG-BKK (Total $230) and I also save 30k Miles.

is this how people usually do it?? Am I getting a better hang of it??

Trip dates were from
August 29th - Sept 6th (I know its short, Im just doing a practice run for itinerary booking purposes)