The performance in terms of shortes dark times is the same because any limits in Dark Time are not caused by the pro timers, usually the cameras are the limiting factor.

I meant it in regard to dark times exposure/interval.

Okay, so I should be able to maintain my settings from the PT 2.5. Thanks.

I just got the PT3 from Oka-San in Saitama, a very friendly and open minded person.

Yes, he is! :-)