Upgrade Options Taz 4

I have a Taz 4 upgraded with the flexy dually head. I’ve had this setup for ~5 years. It’s still chugging along fine.

I like having the flexy dual but it definitely increased complexity and i spend time futzing with the flexible fillaments. Sometimes I wonder if I was better off not upgrading or even reverting my upgrade.

I’ve watched the world advance as well - looking on with a tiny bit of jealousy at auto level beds, quieter/faster prints, finer detail prints, etc. all in all nothing I’m truly missing except maybe auto level.

I guess my question is - are there new tool heads that are compatible with the 4 that may be more reliable, lighter/quieter, etc worth looking into? What other upgrades should one seriously consider on a machine? I know there’s the long list of projects/modifications there including the open rails stuff. I guess I’m thinking more along the lines of 4 to 6 upgrade paths and/or extruded stuff.

Pretty open ended and random question. File under - looking to breathe a little bit of new life into an old work horse.

IT Works has a selection of quality toolheads for the Taz. I am running three of the linked part on Taz 5 and 6 machines. They have been very reliable over thousands of hours of printing. The newer Lulzbot toolheads are also an improvement over the old Hexagon based units but they do cost more and the part cooling duct obscures the nozzle. I am not a huge fan of that!