Just finished the 20 question test for the instrument add-on to my CFI. A few hours of flying to get finished I understand. I also went ahead and did the Instrument Ground Instructor test since it is largely the same question bank.
This has turned out to be a much bigger project than I anticipated.
For about 6 months impossible to find a DPE. When finally found, I then had to find an instructor with the time. This led me to doing the training in a new airplane type, an SR20, with a glass panel. So I had to get used to all that,