Hi Noel
I noticed reducing flow about a year after RARP and it deteriorated slowly. I was offered a dilation fairly soon but was afraid to effect my continance. Urge and frequency also increased as flow deterioted. Uro was OK with that but eventually I had to give in as my flow was down to less than 3ml/sec using the same method to measure as Chris and I was now taking over ten minutes to pee. With urge and frequency issues ten minutes to pee is difficult to manage.
Covid caused a delay and I had a dilation under GA about two and a half years post RARP. I expressed a strong preference for stretching only and no cutting. He did a ridged cystoscopy while under the GA, checked in the bladder etc then progressive dilation.
Catherter for a weekish and no incontinence after.
About 3 or 4 weeks later I was taught self catheterisation and told to do it once a week indefinitely using a size 18 catherter.
Catherterising gradually got more difficult and 3 years since dilation I have gradually increased to every 3 days and I need to use a size 16 first to get the 18 in.
I struggled at first at the learning stage but it was just a question of getting the internal relaxation right.
Regarding the flow test I had one early on and at the time flow was described as sufficient. I then just monitered myself and only discussed it at my PCa review phone calls. I can't imagine they would do a dilation at a flow test appointment without letting you know.
What ever happens all the best of luck to you
Cheers
Bill