Conversation so far:
Why did the band X depart from guitarist Billy Zoom?
Guitarist Billy Zoom  had stated that he would leave the band unless its next album was more successful.
Did the American band X release any hit during 1985 - 1987?
X's fifth record, Ain't Love Grand!, was produced by pop metal producer Michael Wagener and released in 1985.
Is the album,Ain't Love Grand! all X released during the commericial era of 1985 - 1987?
X's sixth album, See How We Are was released in 1987.
What were the reviews of the X's 1985 album, Ain't Love Grand!?
Although Ain't Love Grand! received more mainstream radio play than their earlier releases, it did not represent a commercial breakthrough.
Did the band X have any chart toppers for their album, Ain't Love Grand!?
Burning House of Love, the album's first single, was a minor hit on the Billboard Top Rock Tracks chart, where it peaked at #26 in September 1985.
Is there anything else interesting about the band, X during 1985–1987 and the departure of Zoom?
Billy Zoom left X shortly thereafter in 1986, the same year in which the feature-length documentary film, X: The Unheard Music, was released.

Question: Who are the members?
Self-contained rewrite: Who are the members that initially replaced guitarist Billy Zoom?