V60 beginner tips

I got myself a V60 (along with the honker kettle) in order to finally enjoy lighter roasts. I already have a timemore grinder and a mid range lelit espresso machine so I just wanted something to cleanse my palate and explore more varieties of coffees.

Currently I use the 15g coffee in, 5 pours ending with total of 250g over 3 minutes. I have modified the method to have more sweetness by pouring more water on second pour than rest. Pouring in a spiral motion going from center.

What are some other must know tips and core logic? What changes the flavor and what doesn't?