In regards to PCP's I do have to differ. I feel that they are more understanding when it comes to knowledge that you can't do any kind of rapid taper off benozos. Especially after being on them for over 25 years like I have.
I have been seeing the same psychiatrist for 25 years & every time in the past 10 years I have asked to be taken off the benzos, because they are not helping my anxiety, but making it worse he has either told me I have been on them to long to ever get off of them or that I would have to go in-patient. I have tried the "in-patient approach" 3-times in the last 10-years, The last time was in October 2015. They took me off 4mg. of Klonopin in less than 14-days & sent me home the day they gave me my last dose of 1mg. Within 2-days the withdrawal was so severe that I ended up having 16 gran mal seizures back-to-back & ended up in the hospital ICU for a week. The withdrawals were horrific. After leaving the hospital, I went back to my psychiatrist & he put me right back on them. I was able to taper myself down to 3mg. It took a year.
Supposedly the Ashton Taper is the best way to go and everything I have researched on it states that you have little to no withdrawal. It may take 1 /12 to 2 years, but the way I look at it is I have been on them for over 25 years, so what's the big deal of taking my time getting off of them so I won't have to suffer with the terrible withdrawal.
You should google "The Ashton Report" & on the 1st page you will see the section on "Tapering Schedules."