Hi! I'm building my very first printer -- a Prusa i3 -- and just got my v6 and need some explaining like-I'm-five. My Wade's extruder is the type with a socket for the top of the heatsink with two holes to retain it with M3 screws. Very similar to this one (http://www.thingiverse.com/thing:11152) in that respect. I managed to clean out the socket well enough to get the heat sink to go in and it seems to sit quite tightly and take the screws. But ... Am I supposed to have the PTFE liner in there? My guess would be that I need to insert it into the heat break and cut it off flush with the top of the heatsink and it would fit just the same as my test fit. However, my second guess would be that I'm supposed to run the PTFE all the way from the hobbed bolt if the point is to give the filament a smooth path all the way down. In that case, should I drill out the filament path so that it's wide enough to fit the tube? (4mm?) And maybe the bottom-line question: Should I skip the PTFE, learn how to print some PLA and maybe print a new better-suited extruder a little further down the line? Possibly go to Bowden when I'm comfortable with the printer? Thanks for any help!