Transmission Flush, panacea or poison?

[Grif]

Did he give any thoughts about doing 2 complete flushes within a pretty short period...wouldn't that catch a lot of the particulate matter that will be loosened by the detergents?

I did not ask that, and though your suggestion sounds valid my impression was he was concerned the new fluid would have stronger concentrations of detergents and would break up any "varnishing" (ok we are getting into high temperature polymer science here) that has accumulated on the valves and gearing thus loosening the up tolerances inside causing even more problems in the near future.

Good question tho, and I'll ask him. Thanks!

To clarify, the particulates are not the only concern. Its the buildup of layers of varnish (very long string hydrocarbons formed under extreme temps) on the internal components. Once those layers are removed, everything would chatter around more.