I'd go with using the live EQ server as a test bed. Spells that knock back and melee hits all are worth a look when comparing and contrasting.

The chance to channel needs mapped vs skill level, with distance moved.

H

Good to know. Will look at knockback amount vs channel chance at level 40.

H

Looks like a push back of 2 units. At level 40, thats a skill cap of 200.

Based on code, that distance should make you have a 0% chance to channel, even at 220 skill. So the idea of a buffer area around where you started casting, can make that work pretty good.

Also, if channeling is too easy for clients, it can be made harder by making the distance moved have a linear effect, rather than a quadratic. Because small distance moves have no effect hardly at all.

But that means there needs to be an adder at small moves, so you can channel better, so things like corner tanking will be pretty reliable.

H