If all Bugs fixed in VeloSSD, UserInterface is Refreshed and the translations are very good and a Cache repair/check feature is add and a real "read only Cache" are added to...please add a RAM Caching feature to VeloSSD too.
i think a 2 Level Caching System. is the best way. the most used files are copy in the RAM Cache. This files and all other more used files are in the Cache Volume.
On the boot of the System VeloSSD create a RAM Cache and copy the most used Files in the RAM Cache. if the System crash, no problem all files are Safe in the SSD Cache.