@Terry Dunn - I have to go all the way to 6.0mm and 45mm/s sometimes even 6.5mm and 50mm/s for retraction to get rid of stringing for some filaments, keep adjusting you will get there. (This is assuming that you have not gone to a direct drive system yet). Oops, I see you have direct drive - never mind

@TerryDunn - I have the same set up as you, and my first thought was that you need to tighten your y axis nuts (which it sounds like you did.) this will help the layer lines you have. With respect to the blobs, I suspect it is the filament, I have printed about 14 rolls of filament, mostly pla, but some PETG and tpu, and one roll was full of those zits and blobs and I tried everything suggested here and about a hundred more things. Nothing fixed it and I eventually gave up, and was very happy when the next role of filament showed ZERO blobs.