Why is north inviting with a 7 count and 8ish total points? Even if I guaranteed 4 cd spade support like GIB apparently thinks, I think this is rather much.
Some suggested tweaks:
- 2s should show 3-4 spades, 11-14hcp, 12-15 total points, not "4+ spades".
- 3s should show 5+ spades, 10-12 total points (with 4 spades try something else, usually)
- 4s should be 14-15 total points rather than 15 only.