Hi esmin I personally have had better results using a large widegape hook with mono hooklinks
I'm not saying curvshanks won't work but all the bigger fish I have had with mono have been on widegapes and no shrinktube when I have experimented between the two hook patterns, I think it has something to do with the way the eye of the hook is angled when you tie it knotlessknot style using mono it kicks the mono out this points the point of the hook down when you use a curvshank it almost over compensates and because you don't have the suppleness of the braid the hook wont flip round properly tie some up and have a look for yourself.
In response to your question I don't think adding shrinktube will be dangerous but it might cost you a bite.