Well, decided that the Hybrid Hot end just wasn't going to work in Bluprint due to the curling issues, so decided to break out the Nylon 910 (figured 8100psi strength ought to be sufficient for any pressures I will encounter even with the awesome titan extruder!). Well here is test 1 at 0.15 layer height, 255C, bed 45C, 15% infill, retraction to 5mm per the Taulman3D site, all printed on Wolfbite Nitro (the nylon one). Had a pillow block left over from some work I did over at the OnShape office during a class, and figured sure let's try it. This is really sweet in person (the little zits came right off). Can I tell you how much I love this stuff?