Like I said after sales support is awesome.
I suppose it's a mind thing because I have got decentred copies from them even for lenses that's not know to have any QC issues. So if I buy a lens with known QC issue I feel knowing my luck with
LCE it'll most probably be decentered. Then it's 2-3 weeks of waiting, calls back and forth etc. I'll also have to bear postage one way. So it's just hassle, that's all.
Also I am sitting on a marginally better offer from someone I know personally

So I can get a good copy of the lens for sure since it's been tried and tested.