Question for Saucony Kinvara fans

I need to replace my Kinvara 2 road shoes soon and was wondering if its worth splashing out the extra on Kinvara 3. Does anyone have the Kinvara 3 and can you tell me if the fit is closer to the Kinvara 2 or the Kinvara Trail shoes?

I've been running in Kinvara 2 for about a year and really like them, but recently acquired a pair of the Kinvara trail shoes and was amazed at how much lighter,  snugger and more comfortable they feel compared to Kinvara 2.