Hi,
I'm about to finish building a new MTB bike. I'm small, bikes are small. But this one is 140/130mm full suspension and 29" wheels so I wonder if I can lower handlebars position even further than now to get more weight at front.
What I use is -18* 60mm stem and a straight handlebars without rise. This is from my old bike. The stem has a drop and is low stack so pretty low overall. Old photo of old bike zoomed-in (before cutting steerer) looked like this:

I beliver it's as low as you can go using a separate stem and handlebars. Now, can I actually make it even lower to get more weight on the front? What I found is this:
1) -40* Fraser. Shortest possible option is 70mm. Stem is higher stack but I really can't compare it except looking at photos. And it of course looks different from a different angle.
https://aliexpress.com/item/1005007211225673.html2) Kocevlo something. -17* but low stack, there is "-12mm offset" which may be anything to me. Like drop in my stem. 0mm rise, can't really see that 0mm in pictures.
https://aliexpress.com/item/1005008175120795.htmlAnyone has maybe a similar "problem"?

And I haven't even ridden this bike yet.