What is this switch position on Motor guide trolling motor

[safetyfast]

New to me boat came with this Motorguide trolling motor. I don't understand the difference in the switch position marked "t" and the one with the rabbit. The motor seems to run the same speed in either position.

 

[Lowe 2070 CC]

See attached Motorguide manual explanation.

 

[safetyfast]

Excellent. Thanks!