When I used to trade with leverage, I always thought "3x is just 3x," but later discovered that all those invisible costs in between were what really ate into profits. Margin utilization, funding rates, losses from repeated position adjustments—layer by layer of deductions meant the actual position size you could deploy often fell short of expectations. Recently, I looked into Sigma's xPOSITION and felt like it's breaking down this old problem all over again.