Unbalancing Trick

[Spyderbane]

Unbalancing Trick:

The rogue gains Improved Trip as a bonus feat, even if she does not meet the prerequisites.

At 6th level, she is treated as if she meets all the prerequisites of Greater Trip (although she must take the feat as normal to gain its benefits).

Greater Trip:

Prerequisites: Combat Expertise, Improved Trip, base attack bonus +6, Int 13.

Benefit: You receive a +2 bonus on checks made to trip a foe. This bonus stacks with the bonus granted by Improved Trip. Whenever you successfully trip an opponent, that opponent provokes attacks of opportunity.

At lvl 6 a rogue has a BAB of 4 and may not have combat expertise or the Int.

Any ideas how can I make Unbalancing Trick (Rogue Talent) skip the pre-reqs of Greater Trip