yep.  ENIG can be fine in pressfit app.

Read the connector mfg spec carefully and spec the pressfit holes separately.

1st order effect is getting the correct drilled hole size before plating.
2nd order concern (a close second), ensure copper 
hole wall minimum plating. Keep from overplating the hole wall.
3rd order concern, min hole size. If hole wall is 
overplated insertion forces will spike and your 
press with hang up or pins will Z into the board surface.

At 12:38 AM 6/29/2012, Frank Kriesch wrote:
>Victor, it works. It's a matter of dimensioning 
>the drill holes. Frank Von:    Victor Hernandez 
><[log in to unmask]> 
>An:     <[log in to unmask]> Datum:  28.06.2012 
>20:13 Betreff:        [TN] Press Fit Pins on 
>ENIG raw board Gesendet von:   TechNet 
><[log in to unmask]> Fellow TechNetters:    Are the 
>pins in connector designated for Press Fit Pins 
>gold plated for insertion into an ENIG raw 
>board.   What is the acceptable process.   If 
>both interfaces are gold plated with a thin 
>layer of gold, the thin layer of gold would be 
>wiped off during the insertion process.   Then 
>you would have a nickel to nickel mating 
>surface.   Does this sound correct.   The 
>interface should form a tight air seal. Victor, 
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