"Nootropicer" hehe, a nice new word!
Good stuff in the stack. However I would watch out combining too many cholinergics. Huperzine A is pretty strong acetylcholinesterase inhibitor, Alpha-gpc is a precursor to choline and I think Bacopa is also AChEI. It may not be too much cholinergic boost but I wouldn't stack them all immediately before you see how you react to one of them. Some get brain fog and depression symptoms from cholinergics.
Magnesium l-threonate and L-theanine are good choices, they should go fine with any stack to promote calm and neuroprotection.
Sulbutiamine in my personal experience is a bit wierd vitamin derivate. It promoted calmness but caused panic symptoms at the same time. If you want to take it, try it alone and in low doses first.
Shilajit and Maca are both good adaptogenic herbs, haven't had issues with them in my own stacks.
Rest of the stuff seem like mostly health promoting supplements that should be fine. Except I haven't heard of Pterostilbene before, what does it do?
