[RidgeRunner]

Originally Posted by bigshrimpin

Lenco's electric react faster. I like the bennet tabs, b/c they last a long time and are hydraulic . . . not electric . . . but If you are buying new you might also take a look at the volvo tabs.

http://www.foreandaftmarine.com/VO-QL3841717.htm

http://www.foreandaftmarine.com/TrimTabs.htm

Big Shrimp, Specifically, the Lenco Tabs use one electric motor per tab and are outboard mounted directly to the tab.
Bennett tabs use a remote mounted electic pump that sends hydraulic fluid out to the corresponding tab. I agree the actuators are hydraulic on the Bennett but the motor that drives them is electric. I knew what you meant but a novice might be misled there.
I have had both. Both gave me problems. It is a boat, that is its job.
Lenco tabs seem to be more prone to corrosion and motor failure. Bennett tabs are tough to beat like you said. The trouble I am having with the Bennett is I have one that won't retract.
Having the space to mount the Bennett pump might be a deciding factor when it comes to trim tabs. Lenco tabs just have wires running from the tabs thru the transom up to the controls. My .02