I thought a TP for a Cat6 is a set # of MR pts. It gives you for 250k 120k in miles and 7 nights at a Cat6. So cashing in for a PS is separate and would mean a deduction of 115k for the PS and 250k for the TP.

I never heard of a Cat6 TP going for 235k with 120k in miles. GS call the rewards desk on Fri probably closed tommorrow, and make sure.