Who's using a BTM on their KA-t

[KOUKI KA-T]

I'm installing a BTM and plan on setting it to retard 1 degree of timing per PSI after 5 psi.... who else on here is using the BTM on their KA. Any feedback or experience you want to share would be great to hear.
This is on a T3 by the way, currently running 6.5 psi on stock timing with no pinging, but running pretty rich. Once the BTM is installed I will be turning the boost up to 10.