I'm more of a positional swing trader at heart, so my trades are planned in advance, and I usually use limit orders to execute strategies, ideally around MM stop run areas. Sometimes it takes many many hours to get a fill, sometimes I completely miss out. I say this because I also trade separate personal accounts but that it's easier for me to manage an additional oneup one due to the aforementioned -- kind of like having multiple browser tabs open simultaneously and you only adjust occasionally. To answer your question, the main fees you should be concerned with are monthly account fees + commission. Mes Capital covers the account fee whereas TopStep separately charges you $85 per month for every market you trade in. For me with CL it's $4.72 commission per round trip per contract and you can look up their commission schedule for other instruments on their website under 'funded trader commissions'. That's about the same price as I pay with TD Ameritrade so it's pretty fair in my opinion.