My Tekin never had any problems. With the standard factory software it was touch and go if I'd last 5 minutes with my 5.5 on a 20t pinion if I did practice laps.
New software installed and I race in a tight hall with lots of heavey acceleration and breaking I only get 4-5 LEDs max. I can even have as many practice laps as I want now.
I couldn't recommend the hotwire enough.
The Tekin is now by far the best speedo on the market.
