Amex 想关卡再次4冲7，求建议
用户纠结是否关闭旧卡以实现Amex 4冲7，受2/90规则收紧影响。
1. 关键信息
- Cards: everyday, Hilton, Hilton Surpass, Hilton Aspire (upgrade from Hilton, #1), last Hilton (#1).
- Rules: 4冲7受2/90规则收紧影响 (#8, #6).
- Upgrade: Hilton -> Aspire (#1), upcoming Hilton Surpass to TYP (#7).
- Timeline: Mar (#1), Apr 15 (#1), Jul (#1), now (#9).
2. 羊毛/优惠信息
无。