It's slightly less effective than a manual transmission, but remember you only need to use the stall recovery technique on really steep hills where traction is compromised.

Myofascial release is a body work technique in which a practitioner USES gentle, sustained pressure on the soft tissues while applying traction to the fascia.

The paper discusses the application of conversion speed regulated technique in shearer. It also introduces working principle and developing tendency of the shearer with ac electric traction.