Did you cut down the throttle spring. Looks like you have the old long ballcup on the throttle.
And its not just about setting endpoints. I have run a few 1/8 scales and had my first servo failure at my last race. I had about 90 minutes of runtime on my 8b and switched to the 8t and killed it after 15 minutes. The only diff was I didnt use the spacers in addition to the rubber mounts to raise the servo. That servo had about 6 gallons of runtime.