Y'know,I think it is a Tam. 'saver that came with the Boomerang all those years ago.
Adjust it on the handset laddie!!!
.
My RX/Tx rig is a Futaba Attack R 27Mhz that I bought all those years ago
when I bought the Boomerang
.
Longer 'saver or soivo arm and a redesign of the front brace methinks
