Just putting this out there for feedback. I have been playing around with some 2-level openings to use at an average local club setting. Playing better minor at the one level, 15-17 NT. My main objective was to differentiate the weak 2 bids in a form of Multi. One concern of mine is if allowing opponents to double to show the suit is too much of a negative to use this approach. I am trying to keep the stronger NT bids out of the 1C opening to avoid bidding issues. The 11-14 major bids are just a thought. With interference, it will tend to cause a lot of issues when partner is too weak to get involved. Since I am playing in Sweden, most clubs that I play in do not add many restrictions to bidding systems. I will be thinking over better ways to play the bids and appreciate hearing what you think along with suggestions to possibly improve it.
Thanks a lot!
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1♣: (3-5♣) 12-14 (B), (5+♣) 12+ (UB), or any STR 2♣ opening
2♣: 18-19 NT, 11-14 TP 6♥, 11-14 6♣(well supported), or STR/long ♦
2♦: 20-21 NT, 11-14 TP 6♠, WEAK ♥, 11-14 6♦(well supported) or STR/long ♣
2♥: WEAK ♠, 7-11ish 5/5 ♣/♦+♥
2♠: 7-11ish 5/5 ♣/♦+♠
2N: 7-11ish 5/5 in minors/majors
Edit: Adjusted 2C/2D minor bids to make it easier to know which minor partner will normally have with interference.
Edit: Removed the NT bids from the 2H/2S/2N openings. Thanks Free.