I’m trying to calculate 3rds in that swing and use “RoundToTickSize()” to round up to the nearest tick size. It rounds down 6934.33 to a value of 6934.25 !?
Please change the description in the NS manual, it’s misleading.
This is a crowdsourced forum. The official statement is that NT does not monitor this forum, so no one here can fulfil this request. 
Yes, I know. My last request was also read by NT and the discussion closed. LOL
I guess the good news is that there was a response to your inquiry.
The old structure was so much better, it was more uncommon NOT to get a same day forum response from someone at NT. And since responses were on the forum it was searchable for everyone. 
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For me it always works, there’s a specific RoundDownToTickSize function already
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Yes, I’m using that for the short side 
I’m using now that here:
PB33[0] = Math.Ceiling(P33 / TickSize) * TickSize;
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Yes, Math.Ceiling(price/stepsize) x stepsize and Math.Floor(price/stepsize) x stepsize are definitely valid syntax to round up/down to any step size.
However, I would still pass the result of that to RoundToTickSize() to make sure you don’t get floating point creep (25.25 → 25.250000000001). I learned this the hard way LOL.
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Or just truncate it yourself.
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