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Internal Vs external will always have an inefficient lag during crazy pumps.

Definitely still is an issue in extreme cases.

Can you prove?

What you mean with internal?

SBD stayed at somewhere between 1,1 and 1,2$ at Poloniex, that is not internal in Steemit.

Currently SBD = 0,00097589 BTC and BTC = 1276,29 US$ > SBD = 1,2455 $. The lowest since last pump SBD = 0,000952 BTC > SBD = 1,21 $ (since the low hit twice in last couple of hours but jumped of again, I used BTC value 1276,29 $; Maybe BTC was more like 1273 $ but that does not change te picture for SBD value to much). On Poloniex almost no trades in SBD and not so many (in value) open contracts; Total buy order for 0,0009 and higher of around BTC, for 0,0008 and higher around 38 BTC and total around 70 BTC.