Compression ratio question

I am considering a head change on my 408. It now has a 10 to 1 compression ratio with aluminum heads.

My question is if I change to the new compression ratio which would be 10.3 to 1.
What effect does this make on drivability? I know the change is small and there maybe not any real effect. The engine now runs on 93 octane gas. Which around here is getting harder for find. I have been doing fuel additives so this is not an issue. The car is not driven that much and I don't mind doing the additive. Since I am doing the additives, the change in compression ratio is not an issue. The reason for the question is the times I can not find the good gas and have not additive to add.
Or am I splitting hairs.
I'm curious to what you're looking to gain from this head change? Is it just for the two points of compression?