I think they ware pontid (dark pigmented)with some dinaric admixture(bohemian are brachicephalic), actualy they ware dacians(thracians) adopted the slavonic language.the same case with the bulgarians in which population the east baltic and neo-danubian elements are less than 1%,despite the slavic language.

You obviously haven't been any attention to the olympic squads marching in at the opening of the Olympic Games. If you did, you would have noticed that there are more blond Slavs per squad than there are Blond Germans or English. So you know where you can take your superiority garbage, right? Right!
Amused!

Hair color distribution varies greatly in Slavic-speaking nations. It varies from predominatly brunet in the Balkans, through intermediate in Central Europe to a maximum occurrence of blondism in e.g., Poland and parts of Russia.

Definitely Slavic people like most of the other europeans are not identify with one race.
But I definitely think that the Proto-Slaves would be of the same type like most ot the baltics are today.
Nordic-alpin would be dominant. Osteuropids (Eickstedt) are more of the Finno-Ugrians and came later by assimilation. Pontic or just Mediterranean Race would come with the assimilation of Iranian/Scythian Tribes.

Bulgarian are predominantly pontid (east mediterraneans)in race at least from the neolithic .That means they are descended from the native thracians which ware incorporated in the East Roman empire(Bizantium)and slavinisized in the middle ages thrue the church - slavonic language as a state and liturgian language in the medieval bulgarian kingdom.

"...you would have noticed that there are more blond Slavs per squad than there are Blond Germans or English..."

In fact, Czechs aren't as Slavic as everyone says. I think, that Czechs are closer to original agrarians (b.t. A around 43%) and also to Celts (they partially came into being in Bohemia).

Look at any table of "Beer consumtion per capita" and you'll see, who is CELT.

I dont know where Beddoe gets his info from but its not true.

I have visited most parts of Germany and the Czech Republic and I cant say that the Czechs are darkerhaired than the Germans on average. Even if the Czechs are darker in haircolour than the Germans, which I doubt strongly, the difference would be negligable.

I have been researching slavic people/nations for the last years and I noticed that the Eastern Slavs are the blondest on average.

I have made a ranking on slavic speaking nations and haircolour. From blondest to darkesthaired :

1. Russia
2. Ukraine
3. Belarus, Poland, Czech Rep, Slovakia (difference between these 4 nations are negligable)
4. Slovenia, Croatia (differences negligable)
5. Serbia, Bulgaria, Bosnia, Macedonia (differences negligable)

one thing that caught my eye was that Ukrainians are blonder than Poles and Belarussians despite of the fact that the Ukraine is situated more southern than Poland and Belarus

I wonder if the Vikings or more properly the Varangians-have something to do with the relatively large number of blondes in Russland and the Ukraine. They did after all settle in boththose areas. Any thoughts?