If it is a Brooks saddle you have ruined it.When you get a new Brooks saddle treat it one time only a good coat of proofide under the saddle and a good coat on top let it dry polish off top only.Let your weight and time do the rest for you.You will not need to tension it for years down the road.Ask Brooks this very same ? and they will tell you what I have.Look at it as learning lesson its a hard way but it happens.Good luck with a new Brooks saddle.