DCA BTC

I’m buying BTC every week through DCA, and I’ll be continuing that no matter what.
My job is commission-based, so I sometimes get extra income from sales. When that happens, I’m wondering if it makes sense to just keep my usual DCA amount steady, or increase that week’s buy with a larger lump sum from the commission.
What do you think — stick strictly to DCA, or scale up buys when extra cash comes in?