Scuba,
Now I understand why you would like to be off TKI. Since I just started the treatment a little over a month ago, I have a long way to go to reach PCRU. But it is alway good to know what to anticpate.
Interesting enough, just like you and PhilB, I was a scuba diver also when I was younger, between the age of 30 to 50. I mostly dive in the Carrebean islands. Have not done it for the past 15 years.
Wish you can reach PCRU soon, stay off TKI and enjoy diving again.