Sump Baffle Replacement - Needed every 2 Yrs?

[CM96]

Hi All, just wondering how many people replace the rubber sump baffles every 2 years. The manual says 2Yrs/18k miles however have read many conflicting comments on this forum where it’s not necessary that frequently. Interestingly it doesn’t seem to be part of the 2Yr fixed price service either

[Rolf]

Lotus service partner did not exchange them on my 410 at the 2 yrs service during warranty time. Got the service stamp in the book for second service done, was good enough for me.

Not sure if an exchange makes sense imho. Risk of sump deformation when removed was mentioned.
Plastic film hinges as used for the sump baffles may last forever in this application. No load, only movement. If not, some plastic flaps are swimming in the sump. If not tracked, I would not bother. 
 

[cuprapw]

At the 3yr mark when I replaced mine with a moroso one they were ok

Plastic gates that need replacement ...another genius idea from Lotus ....