JCL -
In the area of "Flow" is what I was generally thinking of "if" the filter was replaced, would help in the flow of the fluid and removing any "Sludge" that has built up over time in the bottom of the pan as well as what the filter may have caught. (Pro-Active) However could cause more harm by initiating then just leaving it alone.

But given what I have reviewed, and questioned in the past regarding another vehicle, I wanted more clarification and understanding of the Pro's and Cons. Preventative Maintenance is important, however this understanding sheds better knowledge of the potential hazard verses either could impose over time.

Your insight is greatly appreciated. I totally agree regarding the cost of not changing the trans fluid verses the benefits of increasing the life of the transmission by changing the fluid and the possibilities it may interrupt and potentially cause issues that other wise could have been avoided if left alone, without any issues in the first place, or it would be suggested not to change it.

I won't be changing my fluid BTW.

Thanks
~Mud