I get about a 5% difference running offsuit versus suited hands:
<font class="small">Code:</font><hr /><pre>
461,582,364,672 games 0.300 secs 1,009,590,272 games/sec
equity (%) win (%) tie (%)
52.707186 % 50.570% 2.137% { A2s+, K2s+, Q2s+, J2s+, T2s+, 92s+, 82s+, 72s+, 62s+, 52s+, 42s+, 32s }
47.292814 % 45.156% 2.137% { A2o+, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o }
</pre><hr />
- Andrew
www.pokerstove.com