yes rob most definitely. a few meters wont push it all out all the time. it really depends on the plastic. i even have some issues with a couple rolls of abs here i have. when i go from this one specific color to another of abs and its from the same manufacturer, i will have a problem. really though its just good housekeeping to occasionally clean the hot end. what i am going to do here as soon as makergear releases their new hot end is order one for each plastic type so i can swap real quick.

just goto home depot and get some zip-strip to soak the metal parts in. no plastic in that please