I have always pushed people towards a 100% dry application regardless of what they are doing with the vinyl or type of application, and I still do. However, my view or opinion is not going to solve your problem here.
Wet or Dry application method, I would not tape up the text in the middle only.
What you are doing here is creating an island of surface tension and obstacles.
By obstacles I mean, ridges/bumps for your squeegee to pass over.
If fitted dry, the tape will trap air. if wet, these areas will trap moisture. so wet or dry, you are creating unnecessary obstacles you need to deal with.
To fix this problem. tape the entire vinyl panel in one single piece of paper application tape.
do NOT double tape in two sections, one piece only.
Unless in direct warm sunlight, the GLASS will be cold at this time of year.
Glass can often condensate, even just with the warmth of your hands.
Cold glass or more so, cold glass with condensation will HELP you apply this dry!
I say help because coldness repels and stiffens the adhesive meaning it won’t want to stick!
so you will have ample chance to lift and lay, lift and move to get things just right.
Remember, i still prefer dry application, but if your used to wet, then go into the shop around 3pm when the sun is going down and the glass will be very cold and maybe moist with condensation. that means you have a “minimum” of moisture to squeegee out from below the vinyl, “if any” at all.
If you are still finding it difficult to get the material to stick to the glass and the application tape is lifting it, try warming it with your heat gun because “heat promotes adhesion”.
However, heating cold glass with a heat gun can also crack the glass if you focus on one area for two long. you need to keep the gun waving back and forth over a large area of glass and then move along, then move back again. your “slowly” and in large areas bringing the glass up to heat. I have seen a lad break a window and I’ve read on here about others breaking windows, purely by overheating cold glass. easy down if its a thin or old single pain or whatever.
no matter if you tape the entire thing or an island of tape in the middle. if you wet apply it, you are creating pockets of water where you have cut out the letters. water or moisture will be trapped here, so be careful removing the tape regardless. because your pulling the tape from tension to an area with zero tension, and its easy to tear letters if not at least crease them.
I’m rambling again, so ill leave this reply at chapter 12 🧐🤣🤣