I expect most people won't know the real answer to this.

Two countries - mono with no tech.

Country A has 1000 acres and 60% the NW of country B.
Country B has 2000 acres and (100/.6)% the NW of country A.

Country A attacks country B once.
Country B retals twice. All attacks are the same type (ie all SS or all PS).

With ghost acres, country B ends up with more total land than it started with.

As further clarification we assume a fixed NW ratio between the two countries.

are there any attack calculators?

For attack success - yes. For returns - no. (At least not that I am aware of.)

last batlle calc which had returns (land) too was wazmo's calc and his site has been down a long time. calcing returns isn't easy so only breaks are calced.

so for that one, attack success calc, where can i donwload of find one?

A should take like 100A approximately... so 100A + presumably 50A ghost acres if B is fully built

assuming networth's don't change (they will, from land, and from B having to buy up jets)...

B should get like... 45 and then 40 for 95 + presumably 45 or so ghost for 140A back...

so end: A is up 50A, B is up 40A

these are just rough estimates, but should be reasonably close assuming no nw changes

Ok, so as a first order estimate, B recovers all land in acres and then has some gains from ghost acres. Thanks.

(that assumes no DR too, of course :)

No.

This sounds like a bad justification for topfeeding.

everyone knows that topfeeding is essentially illegal which is why all the small players at express get hit 12 times a day at a minimum

ghost acres are working very well at encouraging bottom feeding

Topfeeding is essentially illegal, but midfeeding isn't. The only difference is that in topfeeding you hope the person does just 1:1 retals even though your defense sucks and they can easily farm you back and would need to do so just to get their land back. But in midfeeding, you try to bounce their retal, and if they do succeed in retalling, they get all their land back in just one hit. And if they bounce, you gained a nice amount of land.

The problem is that offensive modifiers are too strong, so bouncing someone's retal is rather tough. So grabbing someone close to your networth is very risky because its way too easy for them to successfully retal. If we decreased the offensive modifiers, and put penalties in place for countries that are excessively jet heavy, then bottomfeeding would become less common and midfeeding would occur more often ... unless people being midfed started suiciding over single grabs, which they do all too much of already.

So we need to not only weaken offensive modifiers, but also do something to change the suiciding over 1 grab that so many players do.

I don't need justification to "topfeed". I am trying to set a benchmark for relations. Since qz says I am right and actually used numbers to support his statement I will trust him.

I have deeper questions.

3 retals due 1 hit is land:land retalling.