You'd think good slow speed was something new in tank controllers. This is Asp2 probably at least 2 maybe 3 years old now in my well worn bergepanzer III on a polished wood floor. May have hit the stick a bit hard on to get up the book but wasn't going to do 100 takes. The new Asp 2.5 has even better motor controllers and I've tinkered with the programming as well.