Big T28 Killer Turbo vs. 20G Turbo

Hey guys...it's my first topic here...help me out with your best knowleadge!!!

I'm pretty good...I will say on Turbo Tuning on Honda's S2K, NSX, Civic, Integra, CRX...(my family is a Honda family...lolz)...I have a 9.2sec Spoon CRX TT. :)

But when it come's to Eclipse...Imma newbie...so even if I say something stupid...fix me...:)

I have 97 Eclipse GSX 'bout 6 weeks ago...and last friday finally break into 11s on 1/4mile...

I can't list all the mods I have on here...(I don't want to...:))

But I'm using Big T28 Killer turbo boosten up to 22PSI~25PSI...

So far...I have no problems at both lower end and high end but I wanna boost it up more and break into 10s.

Do you guys think it would be safe to boost Big T28 Killer turbo higher than 25PSI? some says yes, some says no...

Or should I upgrade to 20G turbo...??? and how much boost can 20G turbos can hold?

Thanks.