You can powershift a TKO or any synchronized trans up to a certain rpm. The higher the rpms however,the more difficult it becomes. That's where the proshifting or dogring style engagement comes in. Powershifting is effortless at any rpm with these type engagement systems. My TKO has a dog ring setup done by Liberty which works very well. If I had it to do over though I'd go with the G-force T-5. They hold up just as well and are alot lighter.