Thank You for your advice, Overlandflyer. I actually love all of the mini-meals you described. I have a week of data to report:
I lost 7.5 lbs doing 16/8 for 7 days!
If I can lose an average of 2 lbs/week doing 16/8, that is a huge win. I have never been able to lose 2 lbs/week consistently.
Starting today (begin of week 2), I will adjust my break-fast time to 9:30 instead of 9:00am. Goal is to gradually reduce my eating window by adjusting slightly each week. At this time, I will keep the end of feeding window as 5:00pm. That just works with my routine.
I'm not focused on doing 20/4 now. If I reduce my window by 30 minutes each week, I could be there in 8 weeks though. It's just hard to imagine being able to withstand hunger both all morning and all evening. I've already seen that the hunger doesn't last long. But, it's still difficult to go through for me.
I didn't do any calorie counting or portion control in week 1. I ate what I wanted, which included pasta or pizza on many days of week 1. I still made sure to eat lots of veggies and my protein shake on most days. The first 3-4 days, I made sure to keep eating right up to 5pm. I did that to stave off hunger as long as possible. But, by the end of the week, I sometimes stopped eating at 4:30 and even though I knew I had more time to eat, I didn't. I had learned that the evening hunger isn't so bad that I can't get through it.