Poison Caustic Arrow Pathfinder - Cheap league start, great endgame

Hello! Just wanting to share the caustic arrow poison pathfinder build I put together this league, which I've been playing since league start and have had a ton of fun on and am really happy with! Wanted to play something a bit off meta and see how far I could push it. It's a slightly different way to play CA and it's been really really fun!

tldr: An off meta build that can league start with some very surprising power and clear speed on virtually no budget, and allow you to farm quickly and scale into a very powerful and fast endgame build that can clear all content efficiently with a bit more investment.

PoB https://pobb.in/ieAJo-sP1BmT

https://www.youtube.com/watch?v=UY4dJv2EBUU - low investment - my clear on about day 4 of the league https://www.youtube.com/watch?v=pYArh86ouq0 - high investment

More details!:

Build has triple curse, triple mirage archer and 4x totems. DPS is significantly higher than the PoB might suggest, I don't know how to config it for poison stacking but we are almost certainly hitting DoT cap on bigger targets. Build is fast and tanky and has great sustain too.

https://www.youtube.com/watch?v=pYArh86ouq0 - Some endgame farming, build can run 100% delirium and solofarm 5 way very profitably.

I played this build from league start to farming end game juiced content and it has a great progression curve. I levelled with poison conc and mapped for a day with it, on day 3 I bought a darkscorn and asenaths, and that's really all you need to get going.

https://www.youtube.com/watch?v=UY4dJv2EBUU - This is the kind of clear you could expect on a 5-10d budget, I have replica headhunter in that video but the rest of the gear is budget and you can just swap a biscos over the replica HH which is probably going to give you even better clear, replica HH is just fun before I was able to farm enough for regular HH, and with the clear speed the build has, I was easily farming around 6-8d per hour on alch and go strategies.

My only disappointment is that I wanted to beat wave 30 simulacrum on the build. I'm confident that the build has the DPS, tankiness and sustain to clear 30 and I've made it to 26 with 6 rewards the whole way. However by around wave 27 the monsters have so much HP that the amount of poison stacks lags the server to the point where I get disconnected. I also live in the countryside and use a very weak satellite internet connection so maybe it's my internet issue rather than a server issue, not sure. A shame since my goal since league start was to take a meme/off meta build and push it to the point where it could clear sim30.

Also haven't tried uber bosses since I just enjoy mapping and don't enjoy bossing content, I think the build should be able to kill them, might give it a go at some stage, but tbh after years of playing PoE I still don't know the mechanics since I just don't enjoy bossing.

If anyone has any questions on the build / farming strategy with it or has a theory crafting idea or way to optimize it even more I'd love to hear it! :)