Didn't think you seemed harsh at all.
My philosophy is if it ain't broke, don't fix it.
No strange drop outs or glitches here, internal and external cards working fine together, why bother removing internal card?
Don't mean to sound harsh, but telling someone to change a perfectly stable system that works is a little odd, to say the least.
Sorry it hasn't worked with your "internal garbage" card, perhaps you've had incompatability issues in the past. Here, and with other people (see Bristol Jonesey's post above) it works fine.