While I still hate the current implementation of harvest (I think harvest should be either tradeable or just get rid of it), I've made more then half my net off it this league. Just ran a bunch of Tier:9? Moon Temples (which allowed me crafts on ilvl 83s) in Hamlet on my Poison Conc rolling mostly these
Physical - 8 point Physical cluster (profit 4 ex)
Chaos - Rolled my own jewels, then rolled 8 point Chaos Damage clusters - Profit 6ex (plus the 5ex worth of clusters I'm wearing on my PF)
Fire - Rolled my own shit, then rolled 4/5 point damage over time clusters profit about 100c plus the clusters I'm wearing on my igntie build
Cold - Rolling 8 point cold damage clustesr - made about 2 ex profit
Crit/Speed - Hunter Boots - Made about 2 ex profit so far
Attack - I forgot what I use these for. It might've been rings or someshit
Caster - Rolled my own Despair on hit Ring (which I sold for 2ex after I just started using impresence)
Not to mention the meriad of other crafts. Upgrade Normal to Magic/Rare with High tier is great for flasks this league. (also defense rolls are good on flasks I've found)
Not crazy amounts of profit, but I also don't play a crazy amount of time and I feel like this keeps things interesting. I do like to break up the monotony of mapping and harvest is a great way to do it.
Still, harvest is such a shit system with the TFT shit going on. I could definitely add another 5-10ex in profit if I had sold some of my lucky crafts and other shit but fuck that. I went down the TFT rabbit hole once and if you think poe trade is bad jesus fuck that place.
PS, I'm down to learn to more good harvest craft for profit shit if yall know any.