i already peel off back coat and side coat as it's wrap along. just infront haven't peel off. perhaps will apply tempered glass as i prefer the feeling of glass on hand rather then rubbery feel 

try a few casing also can't fit in and very tight. some even need to push in very hard causing the casing kind of like out of symmetry 

end up peel off the coating at the back. temporary using odoyo casing. waiting for my spigen crystal shell & ringke fusion