Thanks everyone for your feedback. I did get some petg and it works pretty good! I like that I can bridge 3 inches with hardly any sag.
Resolution is not critical for a few of my projects so am using a 0.6mm nozzle.
The petg is not sticking well to the triangle infill very well. Much better than abs, but not as good as I think it can be.
I'm using 245 nozzle temp and 75-80 bed temp. Speed can do 100-200 mm/sec for most of it, but I slow it down to 50-80 when it is printing across the top of the triangle infill. Any suggestions on tweaking these settings to help those layers stick better? Attached are a few pics of the petg.
Also, it gets a bit stringy - is that a retraction setting issue for when it moves from one spot to another without printing? I'm using the simple recommended settings in Cura to select nozzle size and density and have not done the custom settings yet.
Thanks for any help you can give. If I have to build an enclosure to print petg better, I can do it but then I might as well go back to abs since it is much stronger than petg.
I also ordered polymax - polycarbonate filament that can work at temps similar to petg - will get it early next week.