I just installed the Elevate bundle [excited!] and was offered a choice of formats to install, i.e. VST 2, VST 3, AU, AAX 32 and 64 bit etc.
I chose VST 2, since I am working in Reason, but I also sometimes work in Logic. I didn’t install AU, at this time, because I wanted to keep my install sizes down, but am curious about how various formats add to installation size. If I also installed AU, would it double the install size or are the formats modules attached to a base install?
What’s the best practice in this kind of situation? I see that the Newfangled Audio folder in the VST folder is just 34.1 MB, so maybe I’m overthinking it but… you know how it is on a laptop.
Unfortunately, Logic and Reason look for the plug-ins in two totally different places, so install both will double the amount of space the install takes. However, as you notice, the plug-in is only about 30MB, so it's not a very big file. Normally, if you want to use the plug-in in both DAWs you'll install both plug-in formats. However, if you want to use it in Reason only, VST only is fine.
Good luck, and let us know if you have any other questions!