Heavy position or light position, what suits you is the best.
First: Your ability level
If you are very skilled at entering the market and can often get in at the explosive points, then you should definitely seize the opportunity for a heavy position.
If your entry ability is weak, then a light position is definitely better, with a wider stop-loss being more beneficial; otherwise, you will repeatedly stop-loss.
Second: Your level of desire
If your desire is high, your position should definitely be heavier; if your desire is low, your position should be lighter.
Third: Your risk tolerance
For a single trade, how much loss can you accept? If your tolerance is high, your position will definitely be high; if you cannot accept significant drawdowns, your position will definitely be light.