For all light twins like the Seneca, check the rate of climb at MCTOW with
One Engine Inoperative, say one engine fails just after liftoff.
It most likely will be a
negative ROC, be aware of that.
And if that happens, be prepared to
push the yoke to reach
Blue Line. This should be ingrained in your head and repeated at each pre-takeoff briefing.
Make sure you fully understand the implications of Vmca and how the
"vertical wing" (vertical stab and rudder) could stall in an instant during a OEI situation, potentially causing a fatal [snap] roll over.
Here is a good
video by
Harry Horlings, (There is another good one on Vmca for the Baron, if interested I can share the link).