Laminate over a "level" subfloor

I have $1500 worth of laminate floor sitting in a room that I think is ready to go. It is Mohawk Paramount flooring. I am a little nervous about just how level the subfloor is. The house is ~30 years old, with a little settling - some small sags between the joists, and a larger "hump" in one section of the room. I fixed the large hump by removing the 1/4" underlayment in the high section, beveling the remainder with a block plane, and smoothing with leveling compound. There is still a small gap when I lay down a panel in that section. If I step on the loose panel, I can hear it click against the gap. Do I need to fix this further, or will it be OK when all the flooring is connected? I can send plenty of pics if it would help anyone. THANKS for the help!!!

 

FLAT is important, level is secondary. F-L-A-T within 1/8" in an 8' area. Each plank requires the support of a solid, sound, FLAT foundation.

 

Take your time and methodically fill the low spots as well with a leveling compound. The floor doesn't need to be perfectly level but flat enough so the planks aren't flexing as one walks across them. Also, if you have a fixed plan for the furniture and traffic pattern in the room, spend more time on traffic areas, since they'll see more dynamic loading.

I'm going to be filling some minor lows in our slab today (about 1/4") and will be beginning our installation after the material has cured. Best of luck with your project.

Pat