Seems to be consistent with mine to Kiwi. Was 2 degrees today in the valley on my way to work and it drove so nicely, but did jump up in boost very quickly (18psi). Gave it a bit of a squirt in 3rd (probably around 4K rpm) and it sat on 21psi almost instantly and I jumped off it. Cruising round this arvo after work and it jumped only at a max of 20 and it required a bit more of a push. I am 99% certain it is the massive temp drop between tunes that has made it do this, so I am sure this is what you are experiencing. I mean, hell I love the almost instant power that the k04 is bringing, but it makes me drive too cautiously as I am worried about boosting past my target and the k04 going full retard.
The most abuse my car ever gets is on the dyno (which is nothing due to no force applied), so I am not worried on a short term scale, but I would just like my tune the way it was where I could hold the foot down and not worry about hitting 22.5 psi!
2010 Gen 2 - "SPOOOL" (VIC) - Fully bolted
CORKSPORT TURBO | COBB AP3 | COBB DOWNPIPE | COBB REM | AUTOTECH HPFP | CORK SPORT 3" PS MAF INTAKE | COBB SF AB | CPE TMIC | CPE HEADERS | COBB 3 PORT EBCS | 3 BAR MAP| PEDDERS COILOVERS | DBA T4 SLOTTED ROTORS | CORKSPORT EYELIDS| FORGE V1 BPV| | MAGNAFLOW CUSTOM | VELOCITY RED | PEARL 2PAC STOCK RIMS | DUAL TUNED BY HPF ON E30