I love my Llama IX-B. I've put well over 1000 rounds thru it this past year and it has been fine with the WWB FMJ and JHPs. If the Llama full size pistols jam the first place to check is the magazines. Mark the mags when a round jams and if it's always the same mags you should recondition them with new springs and followers of get new ones. They are pretty cheap and you can use the standard 7 or 8 round M1911 mags they sell for about 20 or so. Many times the guts of the mags are gummed up from never being cleaned and it affects the Llama guns more than others. The last thing to check before giving up is the recoil spring. Get the Wolff 20# and it should fix a lot of feeding issues. It's usually not the gun but the other things.
~Fool me once, shame on you. Fool me twice, shame on me~