well i found a solution though it's not dynamic.
i set the interstages to activation group 1. and moved them to stage 3(with my upper stage this is to avoid having a stage with only interstages)
i set a variable to the dry mass of the booster. and compare that to the current booster mass and then activate group 1 if needed. this lets me dump the solid boosters once they are no longer efficient (hardcoded by mass) and also let me use a fuel = 0 for staging the rest of the rocket.
well i found a solution though it's not dynamic.
1.8 years agoi set the interstages to activation group 1. and moved them to stage 3(with my upper stage this is to avoid having a stage with only interstages)
i set a variable to the dry mass of the booster. and compare that to the current booster mass and then activate group 1 if needed. this lets me dump the solid boosters once they are no longer efficient (hardcoded by mass) and also let me use a fuel = 0 for staging the rest of the rocket.