well if your too nervous to remove it all the way, get it as close as your comfortable with, and round it up, blend, smooth, whatever ya wanna call it.....just try and think of limiting turbulence........think if it was flowing water, whats the best, easiest least turbulent way to move it thru the port...then try and do that.
it takes MANY hours to do a set of e7's well. i will never do it again. too much rusty boogers afterward.