Springstay location question

[Brion Toss]

Hi again,
On the one hand, you have a huge lateral angle; you could take the forward shroud tang up to about 30ft. and still have 12 degrees. On the other hand, the forward sweep would be negligible by then. So you could only get your forward intermediate (or a more effective forward staying at the current height) by moving the chainplates forward. Say, to about 4ft. or more forward of the mast, assuming that the shroud would not then be in the way of the main boom.
Fair leads,
Brion Toss

[mariner2k]

Ok, bearing in mind that the point of this exercise is to be able to fly a mizzen staysail. The double backs on the main can be dealt with when I change masts.
Assuming I can't move the lowers forward 4' (though I will check), I'd like to back up a bit.
My old ketch had a springstay opposed by running backstays on the mizzen cap. I know how you feel about springstays but could this be a do-able option?
Or settle with flying a small staysail from just below the jumpers, which would puts me around 20' from the highest deck.
Why would a builder design a ketch without the ability to use a staysail? I assume that there is a reason for that configuration.