I recently brewed two ipas with pretty much the same grain bill and hops schedule, one got wlp540 and the other got 001. Both have this odd taste that I cant quite put my finger on. The best way I can describe it is that they taste under attenuated, but they finished at 1.009 and 1.012 respectively. I have also checked the calibration of my hydrometer and it is fine. I would appreciate any input on what this may be...wnc