For all practical purposes, the amount of area the boost tab takes away from the control surface is neglegible concerning our models.

I have been using boost tabs on all my large ones with great success.

For instance, on my last Extra (33%), I had enough servo power not to need them,but on the other hand, after 3 15 minutes flights of aerobatics, (not 3D) I checked the battery voltage and it was as if I had just taken the battery off the charger., So one can use also smaller battery, smaller servos etc.

Roger