Prepping flies for print (mpix)

Hi all, I am a newbie SLR user-- I recently got my first batch of pics from MPIX to test out (letting them do the color correction when/if needed), and they were pretty nice, the quality is good.

I'd also like to try and do my own PP and see how that might turn out for print:

I shoot in JPEG, however if I PP one of my JPEGs and re-save, won't that deteriorate the image quality due to the compression? Even at quality '10'?

In its finite form a jpg will lose some quality each time it is saved. I have saved some jpg's several times in a test and had it printed and they were still fine. You would have to save some jpgs many many times for it to be noticeable to the eye.

If I am doing alot of PP to a jpg image I open it, save it as a psd and then do all of my editing and then convert back to jpg to send to my lab.

Good advice, thanks!

I use Mpix often, but I don't allow them to color correct. I never have any problems with image quality from their lab.