tiling advice: odd shaped border

[finest1]

hi All, hope you are all having a nice easter break.

i have a tiling and decorating question:

i am tiling the border edge of my shower tray, so this is where the tile meets the shower tray edge. i've noticed that for some reason my shower tray bows slightly in the middle, so not perfectly straight.

my 2 options are:

try to shape the tile as much to the curve (which could be difficult as how does one shape a tile)

keep straight tiles but fill in with grout and silicone.

as this is the edging of the shower im trying to create as much as a tight seal as possible. i've included a very crude, exaggerated diagram!

how would you approach this?

thanks

 

[ShaunCorbs]

Any pictures of said bow ?

 

[Ben-gee]

This is very common so don’t worry.
4” grinder you can cut the curve if porcelain, if it’s only ceramic you can shape it with 60 grit sandpaper or a coarse carbide file.
If it’s only a couple of mil , cut it straight and the silicone will do the job, don’t grout between the tray/tiles.