I have been applying decals on some raised gauges just to see these are too large, having a transparent film border that looks anything but nice when applied.

Since I never used decal fix or softener, I was wondering if that could fix such problems as well, making the excess conform to the surface?
If so, is there any brand you can suggest? I can easily get Revell's Decal Soft but almost anything else is doable.
Thanks a lot!
Cristian