The GC .68 OC is a blinder. Much better than the SB. More efficient, smoother and comfortable. The extra blade rigidity is noticeable. I haven't tried the Jaws.For a mild open comb razor I would buy the Razorock Game Changer .68 open comb. I have not tried it yet, but I love the solid bar version of the game changer .68, and I'm planning on getting the OC version. They also have the .68 jaws open comb now too.
I used the solid bar for thirty days straight, and I found the GC .68 to be wonderful for daily shaving, and hopefully the OC version will be very good as well.
Best of luck in your search, and hope you find what works for you.
I believe the 15C head is actually the same design as the old Vintage Hoffritz I already use. Considering how much I enjoy it, it might be worth grabbing a couple just in case.My 2¢:
The best modern mild OC is the Merkur 15c (or hex handle/long handle variants thereof), it's not terribly expensive, is easy to get great shaves with and difficult to razor burn or nick yourself with.
Cheapest, but still very competent is the SLOC (mine is a RazoRock), it's not quite as mild or close as the Merkur, but it's a solid performer and also at least $10 less and that *includes* a nice stainless handle!
Nicest construction quality for the dollar (IMO) is the RazoRock Game Changer OC, available (sometimes...) in .68 or .84 configurations. If you already have a GC, then the bottom plates aren't as expensive to add, otherwise the complete razor (when available) costs $65. On the subject of mildness, the jury seems to be out for the various GC open comb baseplates, some feel they're mild (even excessively so) and others find them to be mid-aggressive or even harsh.
My first shave with my new .68 OC baseplate was much more demanding of attention to angle than the safety bar version, at the same angle it's identical to the SB plate, but allows blade contact at significantly steeper angles of attack, therefore giving you more room to pick the *wrong* angle for a smooth/comfortable/mild shave. I feel that it compares fairly closely to the Gillette NEW SC in feel and function, so maybe not the best "mild" first OC razor... though certainly not a raging beast of aggression.