How do you decide when it's worth averaging up compared to maintaining a lower average with a smaller amount of shares?

I understand this isn't an easy question to ask, as there are multiple factors to consider when making a decision like this.

However, when in a position where your investment has the real potential to double, and every lump sum, even during dips, increases your average by about 15-20% due to rapid growth, and also increases total amount invested by the same percentage, how do you know when it's better to take the hit of an increased average, but more investment in a stock.

I just want to know, what do you peeps take into consideration when making a decision like this?

Thanks in advance and happy investing/trading!