Precision 21 owners, cabin top factory genoa track

[eaglecreeksailor22]

Hello all,
My P21 only has factory genoa track on the cabin top. From your experience, what is the largest head sail it will trim?
I currently have a 130% furling sail and wondered if this size track is all I need. I have no intention of getting a larger sail. At 80 yrs this all I want to handle.

Thanks in advance for all your wisdom,
Rich