Creating custom pgm's

Does anyone have a good guide to creating your own pgm's? Let's say I wanted to sample a one shot rhodes hit should I record it with decent sustain and then patch phrase it to avoid the changing of lengths after autochromatic assigning? or should I just hit every key and assign em myself for more quality? I know it's probably a personal preference but I'm curious how people with more experience go about it.I'm not trying to get too technical by using separate velocity layers which was mostly what I found covered on this topic just a basic instrument program. I'm working with the 2500 on akai os.

For best quality it would be best to sample every note, but if that takes up to much memory maybe you can sample every third? is it a real rhodes? why not try out velocity-layers?

its not a real rhodes unfortunately im trying to work with grabbing the best sounds off of kontakt so i could have a more portable version of some instruments i use often. Velocity layers seemed a bit time consuming, i'd want to get into it but for now i wanna build up a library of useable keys. Im gonna try them both out and see if it's worth the memory, thanks for the quick reply!

there are a few rhodes programs that have posted on here from time to time. if you're just grabbing stuff from a vst, might as well just grab those programs.