2009 honda ody touring viper 5904 issues

I have tried setting long crank times in the past.  The issue is not crank time, but on some occasions, the RS doesn't pull enough voltage from the battery to fire it up.  At first I was told it was the battery, so i tried two new batteries (redtop optima and regular battery), both had the same unpredictable failures.  If i set it on long crank time, it just tries for a long time but doesn't have that extra to turn it over.  If i use the key, it seems, like ti just pushes a little harder, not long, to get that engine to fire up.  Anyone own a touring honda odyssey with a good starter?  I am willing to try another starter.