Consider:
Nowadays I'm using the TrueHolder coffee-holder in an Audi 80 and missing those extra binding-forces.
(Audi 80.)
According to "Can “am” stand alone?" it can be:
Nowadays I'm using the TrueHolder coffee-holder in an Audi 80 and am missing those extra binding-forces.
Is the first sentence (without "am" in the dependent clause) acceptable?
Context, near "Nowadays". (Less contrieved than here, although I do own an Audi 80 B3). New context.