Deniz, wonderful write up. I love your open critique towards some parts of the bike. It makes reading the review feel true and legit. Not like something the bike manufacturer would like to hear. In general, it sounds like a real world review. Thank you, very refreshing. You don´t see this often these days.
AJ: wonderful pictures. I loved looking at them. Keep going!
I also dig the Der Kaiser. Have been running it on my Bronson and Slayer. I purchased a set of Assegai Exo and Dissector Exo. The Dissector rolls a little bit quicker, but the grip it offers is below the Kaiser´s in the rear. Both front tyres, Kaiser and Assegai, perform very well.
I haven´t tested the soft Apex Kaiser, only the Protection Apex version.