new Rockler separator fittings

[skillington]

I don't know if Phil has time to look at all these posts, but welcome any informed opinions. 
Rockler has a new item, #34367, which appears to be made for our purpose.  It's a 4" straight DC fitting that threads directly into a 90 degree elbow, with a flange on each side.  All we have to do is saw a hole through our barrel and screw the two parts together and we have the cyclonic part of our Thien separator ready to feed into the space between lid and baffle. 
But the straight component enters the lid perpendicular, rather than at the oblique angle Phil has worked out.  The elbow will obviously send the flow in the desired cyclonic direction, but at a slight loss in efficiency.  Does anyone see a major problem with this solution, or has life just become a little simpler for us?