RPM drop is not from how fast your shift. It's a mechanical number derived from the difference in ratios.

As quick shifting. I agree with Scott and that also explains why 833's and T56's are my two favourtie transmissions.

For those who have wide ratio transmissions. Don't be offended. I've had some too. NV3500, T5's etc. I'm just here to state one shifts better than the other.