The final outcome of "8 Diagrams" received mixed views from both fans and critics, and is regarded as being RZA's most experimental work to date. Both Raekwon and Ghostface Killah were unhappy with the album, and proposed recording a group album titled "Shaolin Vs. Wu-Tang" without RZA production. That album would eventually become Raekwon's fifth solo album "Shaolin vs. Wu-Tang". In the summer of 2008, RZA released "Digi Snacks", which was another Bobby Digital album. He used the album primarily to put over lesser-known Wu-Tang Clan affiliates such as Freemurder, Killa Sin, Black Knights, and others. The summer of 2008 also saw the release of GZA's" Pro Tools" album. Almost a year later, U-God released his third solo album entitled "Dopium", which features guest appearances from several Wu-Tang members, and affiliates, among others, and was met with mostly lukewarm reviews. Released one week later was "Wu-Tang Chamber Music", a side project executively produced by RZA, featuring live instrumentation from a Brooklyn soul band called The Revelations. The album features appearances from five Wu-Tang members, along with New York City mainstays AZ, Kool G Rap, Cormega, Havoc, Sean Price, and M.O.P. The first single from "Chamber Music" was a track titled "Harbor Masters" featuring Ghostface Killah, Inspectah Deck, and AZ. To clear up confusion, RZA spoke about the album to Billboard.com: "I think the "Chamber Music" title is very fitting. This music is totally in the chamber, or in the mind-frame of Wu-Tang like in the ["Enter the Wu-Tang (36 Chambers)"] days. But it's not a Wu-Tang album. The whole Clan's not on this album. But it couldn't be in any other category but Wu-Tang. September 2009 saw the release of the long anticipated album; "Only Built 4 Cuban Linx... II" which features guest appearances from several big-name artists, and Clan members, with Ghostface being the most prominent, and also production from RZA, Dr. Dre, Pete Rock, and J Dilla, among others. The album debuted at number 4 on the "Billboard" 200 and at number 2 on the Top R&B/Hip-Hop Albums chart, and has been praised by most music critics.