When you call, you don't have a range of cards, you have two single cards
Sng wizard tells you to call with the top 26% of your hands, which obviously consists of hands like AA and KK too, with which you have higher than average equity. However the fact that when calling with AA you have higher than average equity against his range absolutely doesn't matter when deciding whether to call with 63s or not.
Sng wizard is simply telling you to call with J7s or better, JTo or better, etc
If you see your equity with these hands that lie on the border of your range against his 14% range, these are the results
equity win tie pots won pots tied
Hand 0: 67.800% 67.17% 00.63% 759121508 7095096.00 { 77+, A8s+, K9s+, QTs+, JTs, ATo+, KJo+, QJo }
Hand 1: 32.200% 31.57% 00.63% 356808940 7095096.00 { J7s }
equity win tie pots won pots tied
Hand 0: 67.836% 66.63% 01.20% 2163280884 39025656.00 { 77+, A8s+, K9s+, QTs+, JTs, ATo+, KJo+, QJo }
Hand 1: 32.164% 30.96% 01.20% 1005196188 39025656.00 { JTo }
Obviously with better hands you will have an higher equity, which makes the call even better.
I don't really know how to explain this, and I am not even sure that I understood what the problem you had was.
