I have the Orion XT 10 i - The pressed wood base is a concern.
I made a moisture barrier mat - from a super stiff foam - it is antifatigue flooring.
There are three small holes in it for the feet of the dob base.
The idea is to protect the base from wet grass or ground moisture.
I am in Central Oregon and we don't seem to get heavy dew.
I also store the base and the OTA separately.
That way the weight of the OTA cannot warp the base over time.
Also, I cannot move it assembled anyway as each piece is about 30 pounds.
Move the base first, then set the OTA on it.
Storing separate facilitates how I move it and set up
I can't say if these are long term fixes as I have only had the scope for 2 years.
So far the pressed wood base is perfect.