Complex sentence: The 1980's was an up and down decade for Carno, but started with more silverware as Carno lifted their first Montgomeryshire Amateur League Cup in the early 80's, the first and only time Carno have won this cup.
Split into simpler sentences: The 1980's would be an up and down decade for Carno, however it started with more silverware as Carno lifted their first Montgomeryshire Amateur League Cup in the early 80's. This is the first and only time Carno have won this cup.