Lowering springs question

I commented on a lowering springs thread but it was from 2019. I am new here so I am not sure if anybody can see new comments on old threads. Needing some help, if anybody has input or experience please chime in. Thanks in advance. I am curious if any of you guys are still happy with Eibach lowering springs. A buddy of mine was telling me yesterday that Eibach is bad about losing its coil strength after a year or so. I didn't know if there was any truth to that or not, figured I would ask the Trachawk guys.
Also, I have a jet boat that I haul to the lake. With my SRT it sits nice and low when towing, looked great but I never pulled the trigger and got the lowering springs. I am concerned that if I get the TH lowered, I may not be able to pull the boat. It doesn't weigh much. Maybe 3,500 lbs (trailer, boat, and blown big block) and that is a hard maybe. Do any of y'all or have any of you pulled a trailer/boat after installation of lowering springs?