Yep for sure Brandon. Fished many times for GTs using PE6 or PE7 with a 2008 SW10000 and still do.
That's not to say that it's not better reel for GTs after you spend a the money on an aftermarket 16000 or 12000 of course.
The new 14000 could turn out be an ideal factory-ready alternative to an 18000 for PE8 fishing I guess.
Clem, have you spooled it yet? Shimano's line cap figures state 200 metres PE8 for the 14000. You could fit 200 metres of PE8 on a 2008 12000 spool, so unless the spool sizes have changed a bit, the capacity for the 14000 seems very conservative?