A question about how to use NTSC-PAL patches

Hi from Spain,

I have a PAL PS2 with modchip. Suppose the following situation:

Somehow I obtain a back-up of an USA NTSC game, say Crazy Taxi. Just it as it is won't work in my PAL console as a regular PAL back-up, right?

I guess I have to use the NTSC-PAL patch for Crazy Taxi that's available in this site, burning another back-up of it with CDRWIN, patched, and use it as I would use a PAL back-up.

Now the true important question:

Will the game play at 60 Hz (my TV is compatible) and full screen? All PAL games have only 50 Hz mode, with black strips. I won't to know if that way I can play it at full range.

Thanks again,

Dani

OK, I've finally obtained that NTSC back-up of Crazy Taxi and as I said it didn't boot as a regular PAL back-up. I've patched it with the crazy taxi patch in this site and now it boots. The problem is that not only it doesn't run at 60 Hz, but it also has a very big black strip in the bottom of the screen (oddly enough there's no strip in the top).
I've burnt it again using the NTSC2PAL tool and obtained exactly the same result.

Is it normal? Is there a way to play the game in more favorable conditions.

Now that I'm here, I'll also comment that I've tried the opposite: I've taken a PAL back-up (Silpheed), patched it to NTSC with NTSC2PAL and it boots. I think it actually does at 60 Hz, but I get the screen displaced to the bottom, that is I have a black strip on top and miss the bottom of the screen.

Some method to fix that problem?

Thanks,

Dani