It's the same seal front and back - sits down in and forms a channel. The urethane holding the window in is what really stops and channels the water down the pillars.
You can see here at the corners how it doesn't work - it's only cosmetic, and the other aftermarket seal options sit up over the whole thing. Going to try nicking it with a knife on the front and see if it sits ok, if ok I will do the back as well. You can see the urethane sitting behind. I would probably go the factory seal my time again - but this being a track car I will no doubt have the opportunity to change the windscreen soon enough!
I do have the same seal on my 34 and it works fine, the corner isn't as hard, but I also think it would help to bunch the seal up a bit around the corners so it wrinkes on the glass (as per my 34), but doesn't leave a gap.