Got around to putting the data together today, there are a few reasonable and expected numbers but they are definitely not a guide of what to necessarily expect for a few reasons.
Firslty, I have actually been asking the wrong question here - it should be:
How many points do you get from your EL/CL combo against your otherwise prefered choice
rather than:
How many points do you get from your both of your EL/CL options
Because of this, about half or perhaps slightly more than half the data should be zero (or those times when you took the best choice) and only be non-zero when you chose the 2nd best choice for CL/EL.. Therefore the averages I'm about to give should be reduced by 50% and then this would be still be on the higher side of what could be expected.
Also for the EL, there may be cases where a player is no realistic chance to score a reasonable enough score to be considered for keeping on the field. These cases will further bias the data, so I have actually taken a few of these out completely.
Furthermore, the very low amount of data does not really paint a very clear picture.
CL Average: +24.1
n=34
EL Average: +14.3
n=24
So on the face of it, it seems like loopholing is typically not worth more than around 10-15 points per round which is not a very surprising result. Of course this is not yet a guide to how predict the results from specific loopholes, but it may assist in deciding if a FD should be traded in over a playing rookie for example. Just keep in my too, its probably not every week that you will be able to utilise the EL and FD!
Just as a side, there are three generalbreeds of EL for mine: prem-prem, rookie-rookie or prem-rookie with the ones with closer averages and higher standard deviations to be the most advantagous.
Thank you to everyone who contributed: Maso, Lukus193, IDIG, OzRules, Rowsus, Oh My Watson, davo, doc ron, d-buzz, Krieks, JeremyTobin23, Mr_Arrogance, DoggyODFL, drafter, Emre, Goodie's Guns, Hawk, PeptideCourage, Zimmer, soidog, Batters31, jaca, MMM, Tamuhawk, meataxe and Impromtu.
I am willing to continue looking at this if other people are interested and get proper answer as well as analyse different types of loopholes a little closer. For this I would need a huge amount of data and for that I may even be able to generate this from scores earlier this season or other seasons, so unless you want to keep track of your own loopholes there is no need to continue to post.