Hi Mac,

Thats the plan. Taper all the way around and then score it lightly with a
utility knife.

I just wanted to say thank you to those that have shared your advice with
me. It's all been of help. Should be interesting at any rate....

Thanks again,
Mike

"Mac" wrote in message
news

You are going to taper at 12:1 in all directions around the hole, right?
That is, you are going to taper width-wise and height-wise? If so, I think
it is the best you can do.

--Mac