andyg - There seem to be two straight questions in your post, here are the straight answers.
....is there any time in the IR rating which is Student PIC
No. SPIC only exists in the integrated courses for CPL/IR and ATPL, you cannot log SPIC for any other flying.
Secondly, I also see you can count 30hrs gliding time for CPL issue, I have 30hrs gliding time with 18 P1.... Has anyone ever succesfully done this?
You can count only PIC time in TMGs or gliders towards the 200 hrs flight time required for the CPL, therefore only 18 hours of your glider flying will count.
P1/s may be logged for successful Skill Tests or Proficiency Checks only where these are conducted by a CAA Staff Examiner or Authorised Examiner for the issue or revalidation/renewal of a licence or rating. P1/s may not be claimed for 'check rides', such as those conducted by a club or syndicate for insurance purposes.