Sin - Time Crisis?

[Aztec Triogal]

Facts:

• Yuna says: "Why, that's the day that Jecht came to Spira. It's true! I first met Jecht ten years and three months ago!"
• She met him the day he arrived.
• It takes Sin 10 years to reform.
• Father Zuke was a summoner guarded by Wakka and Lulu.
• Father Zuke attempted the pilgrimage 1 year before Tidus arrived.

Math:

• 10 Years & 3 Months - 10 Years = 3 Months.
• 3 Months - 1 Year = -9 Months

Conclusions:

• That means that between the start of Braska's journey and Tidus's arrival, the people of Spira only had to endure 3 months of Sin total.
• Braska did his trip in under 3 months?
• How long was Sin around this time? Couldn't have been long.
• Why was Father Zuke preparing to defeat Sin before Sin even reformed?

 

[Dark Fantasy X]

hmmm that is pretty intersting, but i dunno