Hi all - sorry for the long post,

My husband and I have earned 600,000 points on our TD Visa First Class Infinite Card, which is equivalent to $3000, however the redemption rules are changing as of November 15th so we will lose $300 after that date.

I'm thinking of booking asap, but am stuck on a few questions:
1. Does the C.A.R.E.S. (Amsafe) harness work on BA PE or BA business class?

2. If yes, should I buy PE or econ tickets now or should I gamble and lose $300 on the chance I might be able to catch a (really) good business class seat sale?

3. Finally, is it even worth it to buy PE or business tickets with a toddler, given I don't think the armrests come up?

We are looking to fly from YYZ to BSL on points during any 10 days of March break between March 13 to March 24 in 2016 and need 3 seats for him, me and our 2 year old.

We could extend the trip to two weeks if there were significant savings (over $500), but would rather not.

Mostly looking at PE or business class for BA or AF or KLM (although I've never flown with them before).

A friend of mine travels to Europe twice a year using business or F and he is convinced that there will likely be a business class seat sale at the end of January or early February, but I'm worried about taking the chance.

Any advice?