Switching poles

[Troberts]

I've been using a 12' 150 all season, and I was 150 exactly when i was weighed at the beginning of the season. i had to be reweighed for my championship which is coming up Saturday, and i'm 154 now, so i have to use a 12' 165 pole because that's all my school has. I only have a few days to practice vaulting on it, so will this affect my vault very much? or should i look into buying a new one, since i'll be vaulting next year too.. i'm only vaulting 10'6 right now.