I personally think that the Drennan SS Handle is bomb proof and I’ve had mine for years with regular use. Following every dozen or so sessions I do the following:
1, Remove the internal pole and wipe both it and the internal mechanism down with hot soapy water.
2, Wet a couple of pieces of kitchen towel in the soapy water and push them right through the internal of the outer handle, until the kitchen towel is running clean.
3, Let everything dry out and reassemble after 24 hours.
Obviously if you get the inner pole covered in crap during a session, then wipe it down, there and then.
I’m a firm believer in that if you look after your tackle, it looks after you and will last