Dave couldn't debate this with Milos alone. He had to pull someone else in to debate Dave. Although I respect Milos. I think one has to proceed with caution when advising insulin for pre-workout. I use during pre-workout but I check blood sugars are in range and This is not a practice I do often.
In this interview, it appears Dave set this up to discredit Milos. SMH!!!! He couldn't just settle for just they both disagree. Such a jerk!!
Here is Matt Porter's take on pre-post-workout Insulin use