[MadMax]

I'm not really sure where you heard that discharging at the highest possible rate is be best for a pack. I just don't see what benefit extra thermal load brings to a battery. High discharge rates run into diffusion issues where ions deplete close to electrodes which decreases cell output voltage prematurely which results in incomplete discharge. I'm not sure if some form of cell reversal can occur due to insufficient electrolyte diffusion. You also get into thermal cycling issues where you find out how fast organic materials (like plastic separators) age when you heat them up that much. Do you have cycle data to show that cells perform better in the long term with very high discharge loads?

Diffusing the energy from a 30A current is quite a feat. A 9.6v pack driving 30A would have to dissapate 144W (at max discharge half the voltage drop is over the load, half in the internal resistance of the pack) which is quite a lot of power. A 2Ah pack (assuming large NiCd) would take 2 minutes to discharge at 30A. You'd be able to boil 50mL of water (starting at room temp) with that much energy dissapated in the pack (17280J!).

144W probably exceeds the sustained thermal dissapation limit of anything in the airsoft realm. Melting plastic cases does not meet CSA safety specifications let alone the technical design limits for most transistors.