^^^^That's the hardest part, imo. Trial and error kasi ang gagawin mo.
Aside from spring tension & technique, some factors that you have to consider are; Cam's shape & size, weight of the beater, and
the way you tune your bass drum. Tight tuning produce bouncier response, but the more you muffle the batter head - which is very common - the less bounce you get; same effect with loose tuning.
The basic thing to do is to develop your technique with your right foot first, then apply it to your left foot. Once you master your foot technique, those little adjustments with your pedals becomes easier for you to discover.
Its personal, kaya trial & error lang siguro muna....saka practice.
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