Open all 11 HCP hands and 1c is a strong forcing club with 16+ points.
3rd/4th Seat use rule of 15 to consider opening
1NT is weak in 1st and second seat and non-vul 3rd seat of 11-13 and 15-17 in other circumstance
A reverse is a high of 15 points and Lebonsohl is available
Link to 2 Over 1
Link to Montreal Relay