maya mental ray vs Turtle (ambient occlusion)

Yonderboy

Hi there 

up until now ive only really used mental ray for rendering and baking, and baking ambient occlusion has especially taken quite a long time (although results have been good).

Somebody recently told me that I should try Turtle as its a lot quicker. Ive had a quick look but I cant seem to get ambient occlusion looking as nice as it is using mental ray. Is this the nature of turtle or am I doing something wrong perhaps? 

Any tips or suggestions would be most appreciated

thanks

Nick

Yonderboy

*bump*

Here's an example of what I mean - mental ray has nice contrast, but i can't for the life of me get the same out of turtle - am i doing something wrong?!

thanks!