Anyone using or having success with dissolvable PVA filament.

I've been working on a dual extruder for my Makerfarm printer with 'clough42' (his design) and it's coming along nicely. I'm interested in printing with PVA filament so I can dissolve away supports. However, I was looking on Amazon at a supplier and they had this to say. Take note of the text I made BOLD.

PVA is a water-soluble synthetic polymer. PVA is degradable and dissolves quickly in water. It is the perfect filament to use as support material for it's dissolvable properties. Generally, PVA is used in conjunction with PLA not ABS because it adheres well to PLA. The extrusion temperature difference can also be problematic with ABS. Importantly, PVA should not be allowed to sit at temperatures higher than 200°C for an extended period of time, known as pyrolysis. It will form jams which are extremely difficult to remove. Unlike PLA and ABS, you cannot remove the jam by increasing the temperature. Clearing the jam in the nozzle will often require it to be re-drilled or replaced altogether, so be careful!

My goal was TO use it with ABS. I also don't want to ruin my brand new Hexagons. Anyone using it and is the warning as dire as it sounds?