response: imagine
I do not have time to answer all of your questions in writing, so if you want a more in depth discussion feel free to e-mail me.
a professional set up most likely looks much the same as yours.
except.. maybe a screen or two more and back up computer that is online thru access opposite of main computer. Phone line direct to pit for givu up trades if power should go out. hwever 30 min back up aps system as well but only powers 1 screen .. trading program..
platforms vary from simple.. manexpress
CQG, TT, x trader onyx , redi etc.
as far as reward.. base it on what I get out of a trade.. I normally and i use that lightly use a hard stop for full position, and a trail for other 1/3, quick profit on the other 1/3, and a break even stop on the last 1/3 rd. many times exit MOC on last 1/3rd.
As far as position size that depends on what I am doing in the market .. sometimes I add to reduce my average price and sometimes I add to winners .. just depends on what I see as far as the market conditions.. there really is no "hard rule" for any of this.. if there was we would all be using it, thus the market would nto have anymore inefficiencies for us to exploit.