Ship hull research strategies?

[javaslinger]

Once you have reached a sufficient level of a particular hull to achieve the next size hulls research area, is there any good reason to continue further researching the smaller hull?

I'm sure this boils down to a cost benefit analysis... In any case, what is your particular course? Do you research destroyers only until light cruisers become available? OR do you max out destroyers or frigates choosing their cheaper cost and perhaps mobility over the larger size?

I'm just wondering what strategies are employed in this regard.

Thanks,

Javaslinger