The opti-grab is essentially a U-bracket covered in rubber, initially used for stage presence and to control neck dive but may be uncomfortable for smaller hands.

The bass includes a thumbrest behind the bridge, which some users identify as the Opti-Grab, adding a unique ergonomic feature for specific playing styles.

The Epiphone Nikki Sixx Signature Blackbird has unique Deep Sixx pickups, which are passive but high output and exclusive to this model.

The opti-grab can be DIYed using a U-bracket from Home Depot, with customization options available in size and finish, such as filing down sharp edges.

Owners upgraded Gibson Thunderbird bridges to Hipshot Supertone for improved sustain, tone, and comfort, retaining the original bridges for potential resale value.

Large-handed users report discomfort when using the opti-grab for extended periods, suggesting it may not suit players with smaller hands.

Some users report minimal neck dive on Gibson Thunderbirds when using wide leather straps, contrasting with the severe neck dive of the Epiphone Nikki Sixx Blackbird.

The opti-grab was intended for better stage dynamics and neck dive control, yet some users resolve neck dive instead with a cloth strap.

Some owners mention that the headstock design is notably intense and distinctive, which may appeal to collectors or those seeking a unique aesthetic.

The Epiphone Nikki Sixx Signature Blackbird is considered rare and collectible, with Gibson versions commanding prices between $3000 and $4000 due to limited production.