Which Size UV Filter (protection) For the SX50

Yes, I agree. UV filter or hood is better than nothing. But what I now want to find out is this problem as LensMate described. A tight fit of original Canon filter adapter. Has anyone tried it?

http://www.lensmateonline.com/articles/products/canonsx50_new_lens_size

I am getting original Canon filter lens with Canon SX50HS for Xmas, so I would like to know what to expect. Any possibility to harm the lens mechanism when applying the filter with force?

Thank you