I think the thorough cleaning (water + dishwashing liquid + stiff brush) is more important than the glue for the textured plate. If you need glue on that, then the plate is not doing its job and needs another rather thorough scrub. A dash of Isoprop can help if applied before the cleaning.
For the smooth plate, try a few lines of the PVA stick which are then distributed into an even film using a moist to wet paper towel. Works like a dream 
These?
I have never had much luck with those. However, my experience is mainly with PETG Basic rather than PETG HF. I usually use these:
That can help with adhesion issues and slightly increase the build space temp. The latter is good against curling/warping but, with PETG, may lead to heat creep.
Again, my experience is mainly with the Basic PETG so take my advice with a pinch of salt.
If you already see issues with the first layer, you could reduce the first layer speeds a bit further. Or maybe only the infill to match the walls.
Similarly, the 125 may be just about OK for the outer wall but the inner seems a bit fast. Maybe try to use the outer wall speed for all printing speeds. It may be annoying to take longer, but that is not as annoying as taking even longer by having to print twice, thrice,…
