You didn't say which tobacco blends you got to try.
If smoking several from the same genre, then go for it.
If you're tasting across genres, then I wouldn't start your day with a Latakia or Oriental heavy blend.
Work your way up from Virginia, burley and Cavendish blends towards the Latakia/Orientals.
I usually finish with an aromatic, if I'm having a bowl.
I see it as the dessert.
A bit like wine tasting - start out with the lightest, then go up the scale of flavour and robustness.
Finish with a sweet.
But hey, this is meant to be a fun, relaxing past time.
So NO RULES.
Whatever you feel like