Problem with oil pan gasket?

I just trimmed mine and RTV'd it and it worked fine. I thought the instructions said this? Correct me if i'm wrong. I used a razor blade on the one end and shortened it by a little under 1/4" and used the RTV, no problems yet. 2000 miles ago and still no problems with leaking.
I thought they were designed this way. It worked for me!
Just my 2 cents.
Tom.