>4x more capacity
Not 1.7x?
i guess it depends on the TX, making TX anywhere from 1.7 - 4x smaller is one hell of an improvement tho.
According to Bitcoin.org
"Is the segregated witness soft fork equivalent to a 4MB block size increase, a 2MB increase, a 1.75MB increase, or what? I keep hearing different numbers.
The current proposal for soft fork segregated witness (segwit) counts each byte in a witness as 0.25 bytes towards the maximum block size limit, meaning the maximum size of a block is just under 4MB.
However, blocks are not expected to consist entirely of witness data and each non-witness byte is counted as 1.00 bytes towards the maximum block size limit, so blocks near 4MB in size would be unlikely.
According to some calculations performed by Anthony Towns, a block filled with standard single-signature P2PKH transactions would be about 1.6MB and a block filled with 2-of-2 multisignature transactions would be about 2.0MB."