Mike explained during a telcon that he how has a new fan for the GS housing. Last night we ran a new fan atop the GS housing for the FEL during pre-M266 Ed cals! The fan is a Comair Rotron model PT283, mounted on a T-slot frame! During 3x runs last night the FEL was ~20 degC cooler than via the prior fans configuration! And, we did not need to run the extra 2x side fans pointed at the bottom of the house!