One more dump to 70 and I will have 200k Gulden I want for long term 
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To Witness will it be better to put 200k into 1 Witness or split them into 2 or 3 witnesses for more earning potential?
. To Witness will it be better to put 200k into 1 Witness or split them into 2 or 3 witnesses for more earning potential?
You can look at the calculator here. https://www.dactual.com/witnesscalculator.php , don't look at the amount because witness going to halve next month. I looked for you and best rate is 200 000 in one account for any length will give you the best result.