Alright, I did the solo spin tests once again, and this time with a new, mint-condition WD (I couldn't find my extra AD145 anywhere so I used my old ones in these pair of tests. All solo spin tests are in the BB-10.
Killerken Killerken AD145 WD
Trial 1: 2:52
Trial 2: 2:55
Trial 3: 2:53
Trial 4: 2:54
Trial 5: 2:56
Average: 2:54
I just recently noticed that my old WD I was using was quite used... so that dramatically affected solo spin time (an average of 54 seconds.) My new WD is from my customized Gravity Destoyer ED145 WD wheras my old used one was from Duo Uranus 230 WD.
wpardin: My new set of tests seem much closer to your's. I think/hypothesize that a heavier Killerken will have a better solo spin time. Also, you did mention to me that your synchromed Killerken was lighter than my synchromed Killerken.
Edit: When I have time, I will post up pictures of synchromed Killerken and more tests. I do have summer school BTW and I am definitely not lying about my tests..., I truly do own two Killerken's. Unfortunately, I live in a "rock", and only have a PC (which is what I use to order my Beyblade Items)...