Hey Chris, well at least we agree to disagree 
Through our fluid flow analysis of many different pan designs (of which we have also track tested), I would have to respectfully disagree with you and stand by my previous statement: of the benefits of the welded baffle to the 'step' as well as the smaller slots. IMO -the volume of the larger holes allows oil to flow through it and away from the oil pickup faster than the thin slots.
While I agree that the dimpled holes increase rigidity, I don't feel its necessary on a baffle since the oil pan isn't a stressed structural member. The entire baffle acts like a brace in the middle of the pan anyway - plus welding the baffle to the 'step' further increases rigidity compared to not welding it. While a properly designed trap door would be ideal, our testing hasn't shown oil starvation around left hand corners. This means that for the NSX, the most important goal of the baffle is to prevent the oil from sloshing to the left around long right-hand corners, which a good baffle does effectively.
From the photo of your installed baffle below, there appears to be quite a large gap between the baffle and the 'step' in the pan. Thus the gap looks difficult to weld in a few different places. The gap also allows oil to flow away from the oil pickup VERY quickly, which is a bad thing. Unfortunately we (FXMD) have lost a $20,000 race motor due to oil starvation using your baffle.
We will be testing and datalogging the performance of the STMPO baffle in the near future. The STMPO baffle has tighter tolerances and sits flush with the 'step' in the pan. I also recommend welding it all the way across the 'step' to prevent oil from flowing between the step and the baffle and thus keeping oil in the sump better.
Billy
