YOY=Young of Year
Yes, LMB will heavily prey upon WE if they do reproduce in your pond. I would still be surprised if they did... If they do, be sure to post the exact conditions as other will be interested! I really doubt you will have an issue with WE overpopulating in your pond.
As far as what can you expect for a maximum size... There are a lot of variables. WE are hungry fish and often times, small ponds have a hard time supporting them. Your pond is a bit larger than most which is on your side. If you build a good forage base and keep their numbers low I'd say their growth would be something like this:
6" at stocking
10" 1 year
12" 2 years
14" 3 years
15" 4 years
16" 5 years
17" 6 years
18" 7 years
19" 8 years
After 8 years growth will be perhaps a half inch a year... If you have excellent forage fish base you may produce a 24" fish in 10 years. That would be about the largest WE you could expect in a pond your size with LMB competition.
