Thanks a lot. I wasn't aware of the fact that these numbers referred to timings. You also answered another question I had referring to the last value which in my case was sometimes 680 and sometimes 689 an a single time even 7xx.
BTW, these were not 'learned' values but values that I found here on the Discrete Codes section.
Anyway, with your info, I now know that the output of MakeHex should in fact work...
Will try it out tonight for sure...