View credits, reviews, tracks and shop for the Flexi-disc release of "Group Flex II: Son Of Flex" on Discogs. Discover releases, reviews, songs, credits, and more about Group Flex II: Son Of Flex at Discogs. Shop Vinyl and CDs and complete your collection. Castle Face Group Flex II: Son Of Flex Our 2nd playable flexi book features exclusive tracks from Warm Soda, Thee Oh Sees, Ty Segall, Mikal Cronin, The. Castle Face Group Flex II: Son of Flex, a Various Artists Album. Released in December on Castle Face (catalog no. CF; Vinyl Non-Standard Size). Castle Face Group Flex II: Son of Flex [Psychedelic Edition], a Various Artists Album. Released in December on Castle Face (catalog no. Castle Face Records Group Flex II: Son Of Flex LP Castle Face Vinyl New/Sealed All items will be shipped with the utmost care. THIS IS THE 1st PRESSING WITH ALL 6 SINGLES! 'Group Flex II:Son of Flex Son Of Group Flex Vol II 7" Vinyl Record thee oh sees ty segall sic alps non lp! MFT radion show on WQRT: Jeff Nordyke guest-hosting:The Brothers Footman - BangO.D.D.I.T. View All · Have any feedback. New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller"s listing for full details. See all condition definitions-. The disc contained excerpts from the Swedish group's recent concert appearance in Australia. A two-sided flexible sheet record of the songs of humpback.