Why do you want to stop somewhere for a few days? Are you worried about the flying time and jetlag? Do you want to brag and say that you went to Bali and you were smart enough to get a free stopover in XYZ?
I'm all for a free stopover, but where do you want to go?
If you can't get a stopover with your award ticket, maybe you should consider this...1) figure out that you want a stopover in a city like HK 2) book your award ticket to and from HK 3) buy a cheap ticket from HK to DPS.
Of course, HK is just an example.
Have a great trip! Bali is fun