Yes, right...I should have thought about the different winds at different levels, I admit. It's just that we check the (ground)speed with this button we have...and speeds might look similar, but when the higher one descends, it suddenly increases speed by a lot of knots... that's what I mean with "theory". In the lectures about sequencing, we were always tought to drop the second one the earliest, 'cause that would slow him down... and it would be easier to lock them on the same IAS.
Well, I have done what I've been told, but found out the complete opposite many times. I could have 12 miles predicted in between, when the AC are at different FL's, but after I descended the first one, I suddenly end up with a predicted 2 miles... so, there goes the "theory"...
I thought about skipping a few steps, by putting them on ground speed, but I didn't think about the impracticality toward pilots.
Oh well, thanks for shining the light !
