I'd like to use the lin_advance feature of modern marlin to better control pressure in the nozzle. I'm not skilled at firmware matters, and from my simple understanding Printrbot's firmware isn't really based on an up-to-date version of Marlin. I've also heard that alot of Marlin stuff needs to be removed in order to fit it onto the printrboard. Sorry if that's not accurate.
Is it possible to get that lin_advance feature somehow? Can I even maintain the new LED control stuff that Printrbot has made? I have no idea how to do it yet, but hopefully one of you experienced guys can give a little advice or point me in the right direction.