I tend to believe that at best it would all just balance out in the end no matter which light cycle you used, that is if using a 24/24 did not confuse the plant to begin with.
 
Light rays degrade THC. To put it in the simplest term, THC works like sunscreen you wear when you do not want to get sunburned.
 
With 24 hours of light you would get 24 hours of THC degradation.
 
Then the plant would have 24 hours of darkness where it would replenish and slightly increase the amount of THC that was lost during the day as plants always do.
 
But unless the 24/24 light cycle caused some difference in the amount of additional THC that would normally be produced per hour of darkness you would gain nothing.
If a 24/24 light cycle did have a cause and effect there would be a 50/50 chance that it could be a negative cause and effect and THC production, and growth, might drop.
 
There would be no other possible reason for there to be any additional THC than if in a 12/12 light cycle.
 
What it would all come down to as to if a 24/24 light cycle would work or not is IF AND ONLY IF plants are capable of storing up enough energy to continue to carry out all their normal needed processes optimally while in darkness for a full 24 hours.
 
IF plants are capable of storing up enough energy to operate optimally for a full 24 hours of darkness I still believe it would be a wash, that nothing would be gained.
 
Of course the opposite is if they were incapable of storing up enough energy to operate optimally for a full 24 hours of darkness then it would definitely have a very negative effect on the plants growth and THC production.
 
Who wants to guess it would have a positive effect and who wants to guess it would have a negative effect?
I guess negative.