OK first workout this morning from CBL (Though really it's Carb FRONT Loading with fasted training, amirite?) - observations so far.
The latter period of the low carb period was a bit meh, had a solid headache pretty much all afternoon. I noticed I lost all vascularity in my forearms and generally was in DYEL mode. But the light at the end of the tunnel of the massive carb pile waiting for me got me through.
Last night I had approx 1700kcals 50/240/50 consisting of a Deep Pan Pizza (first one I've had in YEARS!), foam bananas (HHHHRRRNNNNGGGGHHHHH and all dextrose) and a creme egg

. It was glorious. During & after this I was getting rather toasty (had to take my socks off lol) and after about 20 minutes of finishing all dat dere vascularity was back and I felt normal again. Then about an hour after finishing I was super sleepy. I'm guessing this is all good pointing at a big spike and drop in insulin/blood sugar.
Workout this morning was great for the first 45-60 minutes. Felt strong and energetic, I was also sweating like a peado in a playground. After about an hour I had a bit of hypoglycemia, but it passed after 10 mins or so. I'm not sure what triggered this, but pretty certain it was hypo though not severe (Mums diabetic, I've seen a lot of them).
It MIGHT be related to my pre-workout BCAA's (bringing this across from IF). BCAAs cause an insulin spike without the accompanying blood sugar rise so maybe my body was gearing up for some sugar but there was none there, which hurt me a bit. I will try skipping the BCAA pre and just having Whey & Leucine post on Friday.
So far, I get the protocol but would like some explanation on his fasted training answers tbh.
The whole point of CBL can really be distilled into..... wait until your 'fat' insulin sensitivity is at it's lowest (time based) AND your 'muscle' insulin sensitivity it highest (post-workout, tGLUT etc.) and FILL UP. Fasted training still does the first point but not necessarily the last. Intredastng.
TLDR:
First CBL.
Loved the carb up, made me hot then sleepy.
Workout was good for first hour or so, then small bout of hypo (possible BCAA pre related)
Not 100% convinced on his fasted protocol. (Or rather CBL in general for fasted training)