It really depends on how full the bowl is, really nice to load not much, so the hits don't keep coming, because I don't like to keep hitting and hitting when the flavor is not there anymore... For the most part though I always lose count by the end anyway
Using the firewood encourages me to go for big fills because it's slightly more of a hassle to load and it really has the power and design to fully extract pretty much whatever I put in it without stirring (so I like to fill it hard and use it for multiple sessions without reloading while out on a walk for example,) but I fully agree the flavor is significantly tastier with smaller fills, and sometimes in my ambition I accidentally pack it so tight it starts making the draw resistance uncomfortable, even through the WPA/J-hook. I've put kief and hash through the firewood now and it's incredible how long the flavor and the vapor production lasts, but it's so fine the draw resistance can really suck lol. I stirred the hash bowl a lot mostly to keep it decompressed and easier to draw through.
...I have been going to preset temp 3 from the start and stay on that throughout the bowl....
I love doing this through any water piece, I especially enjoy with ones that allow ocular vision into the vapor path, I start pre-drawing before the warmed-up buzz, and I regulate the temp with my draw speed and such to produce my desired thickness of vapor and often I'll take a few hits off the top without the vape ever giving me the warmed-up buzz.
These are my main two set-ups, J-hook at home and MVS on a walk or such. When I ordered the OGB J-hook I was honestly hoping for something with a wider angle where the glass joint is, but the shape has really grown on me and it can even stand up on a flat surface with the main glass stem vertical when the firewood is attached... I adore it, I think it's my favorite piece of glass ever. The MVS is crazy good for small form factor vapor conditioning, I was surprised how less than half the stinger sticks out the top, the intercooler even fits inside. I go for the magic-flight orbiter or the goo-roo tater-tot if I want water but the J-hook is really enough usually.