Yes, from what I remember, yours is regular size.
Small is pretty darned small. As of right now, both sizes are the same price, so it just depends on which size you prefer.
You tend to lean towards medium to larger bags. Get the regular size.
I haven't figured that out yet.
It probably takes the same amount of work to make each one. It might be a little more difficult to make the smaller one. Who knows.
I fully expect the full size to go up in price.