Which sentence contains a misplaced modifier? After walking onto the stage, the conductor bowed to the audience in greeting. The
conductor shook hands with Michael Guerro, the orchestra's concertmaster. Listening to the beautiful blend of sounds, I marveled at the musicians' talent. The orchestra members prepared for the performance, tuning their instruments.
First of all, wither is better compared to weaken, rather than weak. But to answer your question, weak is a very general word that can describe many different circumstances. Using wither is more impactful because it gives a sense of what specifically is happening without even expanding on it. The more specific and precise you are with verbs, in most cases the more impactful they are.