Smithgd,
As far as i'm aware all instrument logged time counts towards the max 25 hours allowed i.e. both PUT and P1 time.
Not sure about Part 61 reference as i'm away from home at the moment, and it's not part of my travelling library
Give Naples Air Center, FL a tinkle. That's where I did my FAA IR and they'll be sure to give you the definitive answer.
Cheers,
54.98N