The reason being is that eng'd is more adaptable to fluctuations in moisture content, and does not tend to warp as bad, therefore is in higher demand.  

This cycle is a good chance to adapt and overcome.

This market forced me to learn very quickly and adapt fast to not lose my deal.

Time is changing and so is the world, We must adapt and cater to that change if we want to be successful in our businesses and investments. 

Or have you implemented a plan to adapt and flow with the changing real estate market?

As any savvy real estate investor will attest to, you must be able to pivot your strategies and adapt to the market you are interested in. 

It forces you to adapt to dealing with a lot of different personalities.

I like what @Julie Marquez does, but wonder if it's possible/reasonable to adapt such a turnaround fee in a seasonal manner, where you'd refund the fee for a tenant if they moved during X months, and charged it if they move in say Nov, Dec, Jan, Feb, or March. 

Now in 10 years most people will look at them and say they were lucky or they have the Midas touch, but the truth is those investors understood what was happening and CHANGED their investment strategies.What works today might not work tomorrow, and you have to be ready and willing to adapt and change.

You need to pay attention to it, realize how it could affect you, and be prepared to adapt you plan if necessary.