Ok, I'm going to try to do this as objectively as possible. We used to use Lenco exclusively, but now use MinnKota. The tab design itself with the convex bottom provides more lift. The composite tabs, imo would actually do better around oysters, the composite cross-section is quite thick, but still offer some flex without 'bending'. Minn Kota does offer a short stroke actuator for small transoms.
There is a serious downside to the Minn Kotas, tho'. They are q u i e t. You have to shut down the engine to hear if they are operating, even with a quiet 4S

I was accustomed to hearing the Lenco's, port & starboard, being trimmed at full RPM.....
With more lift on the tabs themselves, you have to get used to just tapping the trim buttons rather that holding them down....