[TyFuji]

[ QUOTE ]
I'm sorry, let me state that a little more clearly.

8 [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/club.gif[/img] vs. 8 [img]/images/graemlins/heart.gif[/img]7 [img]/images/graemlins/diamond.gif[/img]
52.5% vs. 47.5%

8 [img]/images/graemlins/club.gif[/img]7 [img]/images/graemlins/diamond.gif[/img] vs. 8 [img]/images/graemlins/heart.gif[/img]7 [img]/images/graemlins/spade.gif[/img]
50% vs. 50%

52.5%-50%=2.5%
50%-47.5%=2.5%

Therefore, suited cards compared to (not versus) their unsuited cousins only have a 2.5% edge.

So the "maximum advantage" of plaing suited cards as opposed to the exact same rank cards unsuited is only 3%-4%. If any of that suit are out in other hands its even less.

A [img]/images/graemlins/club.gif[/img]K [img]/images/graemlins/club.gif[/img] vs. Q [img]/images/graemlins/diamond.gif[/img]Q [img]/images/graemlins/heart.gif[/img]
46.2% vs. 53.8%

A [img]/images/graemlins/club.gif[/img]K [img]/images/graemlins/diamond.gif[/img] vs. Q [img]/images/graemlins/diamond.gif[/img]Q [img]/images/graemlins/heart.gif[/img]
42.8% vs. 57.2%

A [img]/images/graemlins/club.gif[/img]K [img]/images/graemlins/club.gif[/img] vs. Q [img]/images/graemlins/club.gif[/img]Q [img]/images/graemlins/heart.gif[/img]
45.9% vs. 54.2%

[/ QUOTE ]

No, the question is the difference between suited and unsuited hands. Having 87s vs. a random hand provides about (2.5)*2 = 5% additional equity vs having 87o vs. a random hand. The difference is doubled because when you gain, your opponent loses proportionately, so the effect of taking a dollar from your opponent means a net gain of 2 dollars (If you each start with $50, you would have $51 and he $49). The reason he cited 20~% was that the 5% difference in equity represents about 1/4 of the original equity of the hand.

A concrete example:
You have 87o vs AA, all in for a $100 pot. You have 20% equity (I'm not sure what the real number is, the point still holds), which means that you own $20 and he owns $80 of the $100 in the pot: a $60 difference.
Now you have 87s vs. AA, all in for a $100 pot. You have 22.5% equity (estimate, again) which means that you own $22.5 and he owns $77.5: a $55 difference. Your suited cards netted you $5, a 20% gain compared to your original equity.