I wouldn't worry about swing mechanics at all from your opposite hand and just focus on speed, or at least that is what I did.I started up a week or so ago. Man, swinging left handed is quite awkward. lol Does it get any better? I'm fairly ambidextrous. Bat left, throw left, golf right, bowl right. Racquet sports left. But, haven't swung a golf club left handed in probably 50 yrs. Should I just try to swing fast from the left side or try to work on the proper swing from the left side?