Thank you both for your replies.
I haven't taken any measurements but my weightloss speaks for itself (to me) that I am doing something right.
I guess I more or less feel like I am spinning my wheels for nothing. If I can get the same (or better!) results with 40 mins. a day, I don't want to waste my time doing 60!
I see my nutritionist every week to review my plan; I just feel lazy questioning why my extra exercise doesn't pay off. Maybe it does, it just takes a week or 2 to show? IDK.