StevenG, on 2015-April-02, 03:08, said:
Is your response structure different from what it would be if you guarantee 5 cards?
Nope
Please note: My preferred opening style is based on 4 card majors with a major's first opening style and we aggressively raise to 2M with three card support and raise to the three level with 4 card support. I get lots of practice playing Moysians and the like.
More significantly, if you are a perfectly "Law abiding" partnership, this leaks a lot of information to the opponents.
If you are known to have an 8 card spade fit, balancing in 3m is a lot safer.
The knife cuts both ways.