Hennessy's are necessarily the exception. Any hammock with a strong enougjh structiural ridgeline can be set up super tight. For example, if you have trees that are very far apart and you cannot get the attachment points on the trees high enough, then the SRL will be tight due to the suspension being less than 30 degrees. Alternately some like setting their hammocks up that way.
Don't let life get in the way of living.