No its not the same at all.
Its fed from the same set of circuits as the primary. It doesn't matter there are two exit ports in the secondary. The pressure difference on the restrictions and bleeds is the same.
The only advantage is distribution of fuel is possibly better.

A secondary side weep hole adds fuel from a different circuit. A full secondary system would double the fuel flow at idle (if it was identical to the primary side).
Generally secondary weeps serve to keep fresh fuel in the bowl because most people didn't actually open the secondaries often in everyday driving. A little richer at idle also was generally not a problem until reducing CO and HC out the exhaust became a priority.

Tune to performance. The WBO2 is just a reference. If its steady through the top gear on the track, then changing jets for best et and mph. MPH is more consistant indicator of top end power.
The worst cylinder will be the limiting cylinder. Best way to figure out what's going on inside is to look at the spark plugs.