@chetb You should have "Other" in your list and "Other Other" which you can use to create a custom profile. Or you can create a brand new profile with the links below.
@cope413 I recently started experimenting with PrusaSlicer and I noticed that my Ender 3 is printing a lot faster. I had shown these pictures to a couple of folks that I have purchased 3D printed products from and they basically said the same thing you did. I just looked at the settings in PrusaSlicer and first layer speed is set at 30mm/s and the first layer height is 0.35mm. For reference, the same settings in M/C are 20mm/s and .20mm respectively. I wanted to try PrusaSlicer because James Fewster, who prints commercially, had high praise for it. One of the things I noticed is that an STL file exported by M/C and then imported into PrusaSlicer reports the there are various errors that need to be fixed (which it does). I re-slice and export the file as Gcode, then open that Gcode in Matter Control and print it (a bit involved I admit). It seemed that, overall, I was getting better prints, except when there was a large first layer surface area as in this item. Based on your suggestions I think I will go back to this single layer test print with the slower and lower settings and see if it makes a difference. As to your second point, I do thoroughly clean the build plate with IPA between each print (looking for fingerprints) and they are generally stuck on there pretty good. Thank you for your response.
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