[unkn0wn123]

No problem at all.

I assume the HDDs are enclosed In a box, correct?

I was about to continue with this SE but now the weighs have changed.  The 1TB now says it weighs 730gs but the 4TB says. The weight changes a lot depending on the site as well i.e different by 100s of grams on ebuyer than it is on scan. Don't know why amazon changes its weight so much however.... :/

Given you're SEing Amazon, you'd have to stick with their weight(s) that's displayed on their very own website.

Or Is there Inconsistencies with this as well?

There is in a sense as the 1TB model is a lot lighter some how than the rest which means going by amazons weights it's to big of a weight difference for the SE to succeed. I could buy the 500GB model which weighs 449gs but is £40 and do the 3TB model but that's £73 which isn't a big price deal to waste a good SE on a amazon account

EDIT: Ok now if I select the 1TB model which is grayed out it shows the weight to be 499gs maybe it is safe to do, amazon does my head in at times