lets say you normally ride a 9.0
what would be the most comparable egg in terms of width?
I usually go by truck width, so width over the end bolts on an egg shaped board is what I would measure, more so than the actual width or the widest point, but I think others definitely change things up a bit differently, or ride smaller trucks on a similar sized board to a popsicle of the same width, if that makes sense.
Eg I would ride a Huffer 9.12 or so on 159s that I would put on 8.75 popsicles, but an orange eagle which I have 169s on would fit better on a 9.5 egg shaped board that I have here, which doesn't feel that much wider overall, but is a bit shorter all up.
That Black Label 9.0 above is another one that I put 149s on and it worked, better than wider trucks, but I could have gone with 159s if I wanted the wheels out further. Either way it definitely didn't feel like a 9" wide board and felt more like a fun sized 8.6 or so.
Shaped boards often don't feel as wide as what their specs / widest point might be, with brands like Welcome having information on their shaped guide saying something like "Skates like a X.XX sized popsicle" but personal opinion as to what feels comfortable has a lot to do with it as well.
Quite a number of egg boards just feel too small in the tail for me, but I know others love that fact about them and that is why they like them, with the wider middle but the more nimble kicks.