Safest/Fastest Overclock Speed TP2

[killerkhatiby009]

I have a Sprint TP2 and just recently learned about the ability to overclock and I've been trying to read the threads about it but there is just so much information it would take forever to read. I just wanted to know what would be the highest level I can overclock my TP2 to without it freezing and causing issues and instability and such?

Also I've been using the oruam app SetCPUSpeed-1.0d.cab and I've been able to get it only to 748mhz without freezing, i've been reading about Nayer's 4.21 app and I'm not sure if there is a difference between the two if one is better than the other? Would it allow me to overclock more without freezing?