Logically use larger capital will be strongest than small capital, when traders open trade with let say 0.01 lot with different capital if both do not use stop-loss hence larger capital will more strongest to withstand price movement, and possible occurs small capital already face stop out account when trades against the trend. but it is no big deal, depending on trading strategy also, use large capital but use martingale, possible get loss entirely money when all order against the trend.