The LC Racing BHC and EMB series vehicles have a uniquely Batan mounting hole pattern. While the D132F and D135F are reasonably solid servos, they aren't the strongest, nor the fastest.
We aimed to increase aftermarket support by creating servo mounts that allow for the use of any common micro servo (7 x 28 4-hole patterns, and center hole designs).
Micro servos have been extensively developed and used across the RC world, meaning there are a plethora of choices - some, better than others. We are working on a Knowledge Hub article that will detail various common options, including torque/speed specifications, servo horn fitment, and our experiences with them.