It's always been Pat's opinion that you should ALWAYS FOLLOW YOUR DOCTORS ADVICE so, if Jerry's doctor says he's ok to golf @ 4 weeks post-op that is who he should listen to.
Now, I must admit I've had some lively discussions with people who ignored their doctors advice and gone ahead and started training for marathons, to me that's idiotic to do and can only lead to poor results, maybe not every time but overall the numbers are going to catch up to some.
Only your doctor knows your case, he knows your bone density, he knows the device and how it was implanted, listen to him if you want good results.
Doctor Gross recommends 6 weeks before golfing, to me he's very conservative but you cannot argue with his results, you'll find very few revisions or problems with him considering the many thousands he's done over the years.
So, Jerry, congrats on the great results, wish you well, hope you go back to scratch golfing soon, you will just listen to your doctor.
Chuck