Noob questions....

[Redeye]

Just purchased a used Gryphon from a forum member (didn't want to mention his name without permission) and although I haven't received it as yet, I have a couple of questions as to my next move.

First of all it was set back to stock, however it does have a custom 87 perf tune loaded in addtion to the canned 87 tow and canned 93 perf tune. Now for the questions:

Providing I plug it in and most likely find my HEX code is different, can I use the two canned tunes without harming my PCM?

Do I have to return the unit to PHP for reprogram of the 87 perf tune or can this be done using Pegasus after providing Bill with the correct HEX code?

Thanks for your help in advance!

Mike