pretty much yes i felt like no matter how much i nosed down to pick up speed he just stayed with me.
On thing to consider is the warped perception of time you have when a con is on your tail. While a Typh may walk away from a slower plane in a dive in, say, 10 seconds, that 10 seconds are like an eternity when a con is on your tail.
And it's definitely long enough to get shot down.
To illustrate this, here's speed retention test I did between a very fast plane (P-51) and a very slow fighter (Brewster) in a different thread not too long ago. I dove to the deck, leveled out and recorded how quickly both fighters decelerated from the same initial speed:
![](http://i1145.photobucket.com/albums/o507/Snaildude/ponybrewspeed_zps453e8e22.jpg)
As you can see, the Brewster sheds speed rapidly (it's one of the worst planes of our fighter planeset in this regard) but...
![](http://i1145.photobucket.com/albums/o507/Snaildude/ponybrewcover_zps214ddc6b.jpg)
![](http://i1145.photobucket.com/albums/o507/Snaildude/ponybrewlead_zpsf8321e7c.jpg)
... you can also see it takes the pony at least 30s to get away far enough from the Brewster. More than enough time to get shot down.
And the Spit V keeps it's speed up better than the Brewster...