If I go long 1 lot and it loses 100 pips, but go short 3 lots and it wins 50 pips, by a fixed calculation of pips, I'm down 50 pips. However I won $50 So in reality I should be showing a win of 50 pips overall. The calculation would be (3 * 50) - (1 * 100) = 50. Pip calculations should take lot sizes into account and from what I see on the charts that display pips won/lost they don't. I'll see for any given day when the account is up, the pips calculation is negative.

Those lot sizes are taken into account when you take a look at the equity. I don't think it's needed. I like it the way it is. If I win 10 pips with 10 lots, and loose 100 pips with 0.1 lot I think that the chart should show me that I'm not very good with winning pips not that I'm a winner. (10*10)-(0.1*100) = 100-10 = 90. This is not what I want to see