Playing Pokémon Platinum, I was rather unprepared in going to the Distortion World, and I have very few balls, no trick to get Giratina down to 1HP, etc. Will there be any disadvantage if I defeat Giratina now and then go get it later via Turnback Cave?
As far as I can make out, the only difference is that Giratina will appear in a different form - but I can find an Orb for him to hold if I want to change this.
Is there any other difference I need to know about?