The grey photocentric resin overcures heavily. Up to 0.5mm when printing a 25mm cylinder. This also adds extra stress on the PDMS and requires very heavy supports when printing large cross sections. Clouding of the PDMS is much faster than FL resin.
You talk about a "new formula". When was this introduced?
The resin shrinks a lot too. I have never had any cracking though. I rinse the parts in water, then in paint thinner and cure them in water. The day after, 25mm diameter parts shrink by ~0.1mm. But I did some tricks to lower exposure on the resin with the F2 so can't compare that directly with your printer.
For the smell.. I don't really smell anything unless I'm very close to the printer. Just don't heat the resin and only print in open mode. It's viscosity is low enough.
Below is my last large print. About 15cm in height in 0.1mm layers.