Problematic Titan? That's no joke. I remember why I ditched them now and went bondtech on my other printers, hateful extruder (big fan of E3D's other products of course). I ordered four of them due to wanting my machine to be up and running asap and the implication that changing a standard order would incur delays. One of the covers completely shattered the other day and they all require frequent adjustment of the screw through the drive gear. I've been tinkering with sensorless homing and used your scripts to help me out: thank you for posting them. They haven't though really. Cold homing is a pain unless I use the standard settings, which have coocked my steppers (to be fair, I've not helped that, it's not a fault of the deisgn, just unrefined firmware which we all expected and me running the machine at an ambient 60 degrees (apart from the electronics enclosure that sees no more than 20)). Anyway: Just taken delivery of the Omron endstops to get rid of all this nonsense (don't have any 3030 T-Nuts in my supplies though! Typical!). The C axis sensorless homing is nice, and something I meant to get round to sorting.