Not really. Pre check in T4 requires a lot of back tracking, the actual security part will be quicker but it adds about 7-8 minutes walking.

I did this last Saturday because the security point mentioned in post 234, http://www.flyertalk.com/forum/27182475-post241.html, had just had about 15 connecting pax queue up. It was pretty much a wash between the two but I didn't want to take my shoes off and deal with liquids and laptops so I went to T4.

Whenever I come from T7/T8 bag drop off I do security at a Pre check point but if I'm doing all carry ons I just get dropped off at TBIT and use the connector security checkpoint.