I would not say I am a beginner, previously employed as a contract artist for SEGA.

My concerns are not regarding the bsp but the visuals, I just dont want shimmering 'holes' across the seams of the blocks.

I did "just place the blocks" and I ended up with seams all over the place, including between flat square blocks.

My compile efforts lead me to using the bsp options in the hopes the blocks would snap together better then they had without.