bubble play with equal stack

[cjs]

party 30/3 NL 1 table

Is it correct bubble play to steal from an equal big stack with an A?

NL Texas Hold'em $30 Buy-in + $3 Entry Fee Trny:15411203 Level:5 Blinds(75/150) - Saturday, September 03, 12:44:06 EDT 2005
Table Table 11183 (Real Money)
Seat 6 is the button
Total number of players : 4
Seat 6: ( $1010 )
Seat 7: ( $1455 )
Seat 8: ( $2750 )
Seat 4: hero ( $2785 )
Trny:15411203 Level:5
Blinds(75/150)
** Dealing down cards **
Dealt to hero [ 7s Ac ]
hero is all-In.

#8 has been agressive and seems decent.