agree on that, but tweak should come later than sooner as we ‘give that plan’ time to show us stuff. If we don’t give the body heal/repair and change up metabolism time and handle horomone balances thru ‘just the basic concept of the plan’ we are using then nothing ever comes to tell us real truths.
Like eat Keto plan but one relies heavily on keto fake sweetner desserts that are working against them but ‘hey it is Keto’ ya know as offered out there…or go LC but how low does one need to go? Only with time trying any plan can one direct that way forward.
How many do the ‘been on a Keto diet’ for a week but ‘must have’ a ‘cheat week day on the weekend’ and wonder why they are not progressing so fast as the plan said ya would?
newbies gotta go all in and hang and when a ‘newbie’ like me in the old days finally says ‘enough BS is enough’ I learned that one must commit all in and fight the crazy while changing…took me a darn long time to learn just that …ugh… 
never tweak before one is set on the guidelines of that plan and finds better results and changes. Tweaks are for those later in that ‘done the work and body more healed’ and now it is tweak time to fine tune it down to who we are kinda is my thoughts on it.
for me personally I found fighting like hell came first, some tweaking came way down the line
when the body showed me massive changes and I knew I had that right path, now I had to tweak for me and that is how we find each of us on the path.