C$600 for a double 3.0 ain't bad, and no, the squared ones are metal without "wings" on the corners.I have a 2.0 double wide that I paid 600 Canadian for. I think that's the square one your referring too. I'd love a spinal case.
There is a 3.0 doublewird on kijij Toronto but it's 900 firm..
Spinal case, I got one too, possibly the best in artistic design amongst the cases.
Love this quote from the great Dann Thombs, founder and sustainer of the O-Review website:
" ... more emphasis on dedication and it doesn't end up like the ones here where deep pockets puke a table full of X-Metals, and it's the best thing ever."
O-Review
Puke reminds me of this: