For those that shoot around 40 pounds.
I was shooting CE Maxima 150's (.495 deflection) out of low-40's recurves and longbows with 200 gr. upfront at 29-30" length. The CE 90's will probably need to be cut a bit shorter and/or less weight upfront if for hunting bow usage. That should be OK anyways, since they are heavier than the Maximas and high FOC won't be required to get the weight up. But then of course, for longbows that are out from center quite a ways... they will probably be the ticket.