It's the left throttle Indians with left foot clutch and left hand gear change that will mess with your head.
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I think the Indians had left hand throttle, left foot clutch and right hand gear change. With the sliding gear gearboxes you needed to double clutch with false neutrals on the down changes. The only way to do this is with one hand on the throttle and the other on the gearchange.
Cheers, Grahame.