Upload & Sell: On
In my book, the E2 is hugely inferior to the E1. The E2 has this huge bulge on the side where your wrist is, it's incredibly annoying. Yes it's easier for first time setup, but you do that once. I was kicking myself for selling my 1Ds3 with the E1 attached.
Then I went looking for new E1s on eBay. They are all knock-offs, but worse, most of them are bad - they are too short, you actually can't wrap them around your wrist. By trial and error I ended up buying E1s from various sellers, until I found one that fit perfectly - and then I bought 4 more of them for the future, just in case
This is the strap that has the right length and fits very nicely.