Your are mistaken on wear happening only on a cable slide comment.
Lacrosse 329BHT is very similar to my 323rst.
Im going to guess a little here and say your fridge slide-out has what primetime calls "floorbrace".
If so it has a plastic weave bottom. This is the slide to be concerned with the most!!!
If not better yet!! Your fridge slide is a smaller then mine and that could help too, so thats good.
You read the thread so thats good. You have that knowledge to make a educated decision...I didnt.
We love ours unit and im sure you will love yours.
I have a neighbor with my same unit only in 2013 and we have had some of the same issues. Here some that we share and shared.
1 -slide wear issue both fixed and wearing still!
2- microwave was installed in the cabinet with the feet of the micro in the air. Only the front screws in the face plate support the micro.From bouncing down the road The screws pull out of the cabinet wood and enlonggate the holes. FIX- Remove micro and make shims for the micros feet out of 1x2 wood glued to the bottom of the inside shelf.
3- You have 2 outside fridge vents. The top vent will allow water to enter the unit in a strong rain. The water runs inside down the wall and onto the floor.
Fix- My dealer removed the top vent and made a wall of caulk
across the opening close to the vent. Do not recaulk around the bottom of the top vent. This allows the water to weep out.
Im going to do something other then a wall of caulk this year.
4-Check under the other slides for screws sticking threw the bottom.
I have purchased 2 pt units a tracer and lacrosse and the both had screws sticking out the bottom. On my tracer this did a lot of damage to the carpet and threshold from open / closing of slide..
And a lot lot lot lot of little stuff no biggie typical rv qc.
There is a few pointers for ya
Enjoy pt makes some of the best units out there!