Ben, for not being a liner guy - that was a great answer!

With a ~2 year old liner, there is more 'play' but getting it done sooner is always the best bet. Get the rest of the water out of the pool before applying the vacuums, I can see it causing stress where the faceplates are.

If you need any help with where to put the vacs or how to do this, simply ask - I work 8 - 8 tomorrow but should be able to get on line ~ 9pm, if you want to do this on Sunday.