Had my first shave with the Rocnel SE OC razor this morning and have to say it performed really, really well.
I was essentially clean shaven in one pass and the OC design did seem to help a bit with the lather pass-through and avoiding early clogging.
Now, this head isn't marked "P" for mild like the Rocnel SE SB razors are and it did feel a tad more aggressive/efficient but that might simply be due to the OC design. Anywho it seems to work pretty well.
The snapping a blade in half-thing and a somewhat quirky loading/unloading of the blade does make this razor a bit more awkward to use but if you're used to the first one of their razors it should be business as usual.
I used a Feather blade this morning and I did notice that after having snapped off the end tabs there were no protruding jagged edges sticking out. Not sure if I got lucky, if the Feather blade just snaps cleaner and/or if there was a design change in the OC head (I don't have the original one with me to compare).