I'm assuming they don't stack but they act as an average, but it's an assumption only. Needs to be tested, but it's very hard to find very different weapons effi-wise but same cost/shot.
It's never been officially clarified (nor will be I'm sure)
I'll actually quote a post from Darkaruki from the thread you linked, Evey.I don't think they stack, more like there's an avg between the two, would make much more sense.
It seems like they stack. Now, what is the baseline? That is really interesting to find out. I think a test is needed with a 0 eff weapon on a fresh avatar teamed up with another avatar.As you can see in the post that followed, we repeated the test with these two avatars using the same number of hits with the same weapon with the same efficiency and also encountered a difference in return rate there, however, lower, meaning that that difference was based entirely on Looter Profession while the other difference was based on both Looter Profession as well as Efficiency.
There is something noteworthy to mention here though, since it is possible the test could have been skewed in the possibility that Efficiency's effect on loot return is non-linear, however, given that the first test yielded a ~3.3% difference and the second test yielded a ~1.14% difference we can see that:
3.3-1.14 = 2.16
14% efficiency = roughly 1% return rate if linear
difference between mod lr32 and imk2 in efficiency = ~30.2%
This pretty much proves that the Efficiency number does exactly what they said it does without any trickery and follows a linear scaling.
Of course, the numbers are slightly off, but that's to be expected since they weren't 1 million shrapnel loots, and Efficiency only goes to one decimal point.
I think this info is very useful, and I think it would be great to further test the difference in return rate this way between avatars with various Looter levels to see exactly what kind of impact on return rate it can have and at what kind of level the impact starts to lessen.
If they would stack it would mean your baseline is below 90% which is not possible. Especially according to this statement dated 09-27-2017, numbers from the database:
So as a new player you get 0 looter and like 50% efficiency with a Rubio. That would be 3.5 above baseline out of 14% possible, IF they would stack which leads me to believe baseline is above 93%.[h=3]Developer Notes #14 - Loot 2.0 Update[/h]
Early data show positive results from those experiments:
- Hunters with turnover of more than 50000 PED since Sept. 11 have enjoyed returns of 98.6% on average.
- Hunters with turnover between 10000 and 50000 PED since Sept. 11 have enjoyed returns of 97.05% on average.
- Accounts created in 2017 have enjoyed returns of 96.94% on average since the changes implemented on Sept. 11.
There might be cases of UL weapons with a such miserable base efficiency, that the EFF improvement of an attached P20 might yield a higher TT return than the associated MU% extra costs of the P20.However, are there other uses/benefits to using a P20?
Apparently it can improve the overall efficiency of unlimited weapons as well.
If the efficiency improves on unlimited weapons, is that a good strategy?
There are still misses when you use unmaxed weapon and they aren't returned in loot. Let's say you are 70 lvl and use a non-sib weapon (HA = 8.2). 1.8% of your shots would be misses so you can roughly say that you lose additional 1.8% of your tt return.is it considered economical to use a weapon that has high efficiency and is non-sib and a player is not maxed in that weapon yet?