MDF versus Baltic Birch?

Wow, great info guys. The MDF sheet that I have is the kind that can stay submerged in water w/o swelling (it's for use in the humid islands here and the supplier has had a sample piece in a 5 gal. pail of water for 2 yrs for display purposes). But even so, it sounds like biting the bullet and buying more Baltic for re-enforcement is the best way to go overall. Thanks to all

What type of glue are you going to use?

I'm presently at sea working on a ship, but as I recall it's called "Tight Bond". It's light brown in color and water based, very similar to Elmer's cabinet making glue but slightly higher on the food chain - unless someone can talk me into something different.......

Titebond II or III is what I use.

I use a professional grade spray on adhesive. Only $250 for a recharge ouch. it also dampens cabinets. But I have used similar to tight bond which is good.