Hi, Having prep'ed my floor, I'm starting to think about installing the 12mm laminate flooring planks through my dining room, hall and lounge. I'm going to need to install a couple of ramp profiles between rooms that will have different finished floor levels by up to 15mm. I also want to install an end profile around a fireplace hearth and across the front door. Some suppliers only sell ramp and end profiles that they say glue to the floor (the laminate in the case the ramps and subfloor (Stopgap 1200) in the case of the end profiles), but I've noticed shopping around on Google that some suppliers offer these profiles with a "gripper channel" that you screw to the floor and that will hold the ramp / end profile in place (example photos attached). I can see these glued profiles, the ramp profiles in particular, being kicked and trod on regularly and the glue failing at fairly short intervals, but also realise it would be an easy fix if they do. I'm also starting to see I need to know exactly what ramp & end profiles I'm going to use and how I'm going to fix them before I start laying the flooring as I'll need to leave the expansion gaps to the gripper channel, which I'd think needs fixing down before starting to lay the planks. My questions are: What are the pros and cons of fixing these profiles "glued" verses "gripper channel"? And will profiles glued to the laminate and subfloor hold well or will they keep coming loose every few months (which is what I'm imagining)? Many thanks in advance.