Ignore all comments regards extra soaring specific layers as most can be derived very broadly from thermal height. How fast a thermal goes up is first driven by the height it attains, and secondarily by the temperature profile on the way. So unless you are going to deliver a profile tool for soaring........ :-)
There is one additional piece of information that would be useful, and that is the buoyancy to shear ratio (b/s ratio) or bullshit ratio, as we call it. That helps determine if the thermal will be too broken up to use, even if it goes up a long way. That said, simplistically if its windy the B/S ratio is low, if it is light winds it is high. Exceptions are the record breaking long distance days on the flatlands where the airflow is laminar but strong and the temperature gradient favourable. Individuals chasing those records will go a bit beyond windy anyway.
Thanks for continuing to improve a great product. If you want to incorporate the Australian BOM ACCESS model send me a message.