Subordinate Orlen said:
Even after powering up considerably, #19 still didn't make the cut as being one of the Androids that can easily beat Trunks, so I don't see his pre-absorptions self already being stronger than Trunks.
# 19, after the Absorptions, increased his power considerably. I think an increase of 1.25x in his previous power would be enough. So:
Future Trunks SSJ [Mecha] 240,000,000
Android #19 [Pre] 260,000,000
Son Goku SSJ [Mecha] 280,000,000
Android #19 [Post] 320,000,000
Android #19 ( pre ) is ~ 80% of himself ( post ), which is a pretty fair power up IMO.
Trunks SSJ ( mecha ) is 75% of Android #19 ( post )... I think the Z warriors ( Vegeta included ) expected at least a 1.5x gap ( 66/100 ) between Trunks and the Androids, hence why Trunks called them " monsters ". So a 75/100 gap is not that bad IMO. Future Androids minimum expected would be 360,000,000 IMO.
Future Trunks [Mecha] 240,000,000
Android #19 [Pre] 260,000,000
Son Goku SSJ [Mecha] 280,000,000
Son Goku SSJ [Sick] 320,000,000
Android #19 [Post] 320,000,000
Android #20 [Post] ~ 350,000,000
Future Androids [Z warriors estimations] 360,000,000
So #19 ( post ) is not quite there with the Z warriors estimation, which would be at least 1.5x Future Trunks. But #20 ( post ) is pretty close, hence why Piccolo ponder the possibility of him being one of the Androids.