What is the bug?
It fractions ur spoils by the amount u raid in. That is your production will sum to the 50% of the loot that you bring in from raids.
How to do it?
step:1 if you have computer tech 15 that means u have at total of 16 fleet slots. send 8 (half of your available slots) raids out bound and try to make sure they come back at the same time.
step 2: shut down your mines all down to 0%.
step 3: open the resource view page in two different tab.
step 4: set all your mines in one of those two tabs to your previous setting but do not click on calculate.
step 5: Set all your mines to 0% on the other tab.
step 6: from another planet do a time match transfer of any amount of resource 1 metal is enough. u just need to create a transfer mission to that particular planet timed to the raids returns. send 8 transfers to match each raid returns.
step 7: like a phalanx hit just watch that raids and transfers return. and as it touches down calculate resources to previous settings (all 100% if it is ur preferred settings. mind it the res increase will be as per production speed)
Step 8: Do step 7 for each returning raid missions and VOILA!!! you have doubled your equity

just hope you will enjoy it as much as rest of us in that server.... exploitation is fun!!!