Are you using mostly GM sounds?
If you are doing so currently, then yes, VST will be a bit of a learning curve.

I'd suggest you replace (or augment) the older SC88 with a newer hardware synth containing a newer GM soundset.
They have progressed a long way.
For GM based VST, the TTS-1 synth from Cakewalk is often suggested as a softsynth alternative.

The reason I suggest an upgrade to the SC88 is that (for instance) the Juno-DS has much better sounding GM sounds, plus besides the better GM trumpets, it has dozens of other trumpet sounds .. so your choices expand, plus it is still a hardware synth like you are used to working with


I do not work here, but the benefits are still awesome
Make your sound your own!