I got the HG 1/144 GM (Shoulder Cannon Equipped/Missile Pod Equipped) and I’m super excited to build it!

My experience with water transfer decals is lacking, I did some on my Guncannon and you can see an edge on one of the larger leg decals.

Any tips/tools/recommendations to help me make the decals look as clean as possible?

I’ve got tweezers and a craft knife, not sure what tools would help, I’ve seen those little sponge tools and decal fluid. I’ve tried different soaking times and suspect I was impatient. Honestly the whole process was pretty fiddly and stressful and this dude has WAY MORE TO DO!