We have read the thread, I must mention it is an option that has been suggested before in whichever form. For the time being main is staying as is with no siblings. We take a lot of convincing to change things that take a recompile of the svn, thats the way we are and I can't fault our caution there. Doing a rollback is in no ones interest.
We're keeping it in mind as with every suggestions. Some have lain dormant for a while until we decide its time or it just stays there in our should we/should we not pile.
Thank you for your suggestion.