For applicants over 60 years of age, the security check is very minimal. The senior applicants (parents and grand parents very rarely get stuck in enhanced security screening).
The sponsorship application processing time for parents and grandparents is
20-24 months.
see
https://www.canada.ca/en/immigratio...vices/application/check-processing-times.html
So you do not need any CBSA / CSIS notes. And there is no point wasting money on them.
The sponsorship application has 2 stages
Stage 1, the sponsor's eligibility is checked, to ensure that they can sponsor.
Stage 2, the eligibility and documents of the person being sponsored is checked.
If you exceed the 20-14 months processing time frame, only then you should consider GCMS notes. To read on GCMS notes, see
https://www.canadavisa.com/canada-i...order-read-general-questions-answered.482200/