I already had a Petz Myo RXP. This, however, has given up the ghost after years. I have now decided to use this model. I use Headlamps exclusively for jogging / running. To this end, the Tikka RXP is not suitable for me. The fact that all the weight sitting on his forehead I have to uncomfortably tight headgear. Over several runs away I could not get used to the weight of me. When Myo RXP, however, the weight distribution is the fact that the battery compartment on the back of his head is much more pleasant for me. The Myo RXP I never had a foreign body sensation in the head. Another disadvantage of Tikka RXP is that I hide my strong with size of 1,86m oncoming runners. The light output of the lamp is very good. From the reactive lightning technology I hardly noticed anything while running, neither positive nor negative. I would not buy this lamp again, but again the Myo RXP or the NAO, as both lamps have the battery compartment at the back.