OK, OK, I'm in a better mood now.
Yes, the only way to get away from escorts is to slowly crawl away silently.
I think I've just tried too hard to "be quiet" and trust in silence to save me, and it won't. You've got to flank up to 7 knots, THEN cut and drift to get them to lose their scent. But if they have your scent, going low and slow won't help you - you're just an easy, slow target at that point.
Last night I made it through the Strait of Gibraltar. They were on me at least dozen times, but every time I evaded by running up to flank for a minute, then cutting to 1 knot and a 20 degree shift in course. But once they find you, you've got to go flank to get enough speed up to drift away from them as you will never lose them otherwise.
Up until now I've been trying the strategy of just running silently for long enough until they give up, and in this game, that almost never works.