Urlwolf,
Uninstall works perfectly for FD-ISR. You can keep the snapshots after you uninstall.
Usually, Raxco's version will be a few weeks later after Leapfrog release.
This is how I use FD-ISR:
- Gaming Snapshot
I keep everything to a minimal. Since I play games offline, no AV, no real time monitor, etc. My snapshot size is only 1.5 gb after compression.
- Backup Snapshot
If the main snapshot gets screwed, I use this backup to recover.
- Main Snapshot
This is the snapshot I use for everything else. Surfing, BetaTesting, Work, etc.
I always backup before installing new software/updates. Backup takes about 1 min for me.
- Guest Snapshot
Everything locked down.

I don't think RestoreIT can let you have many different scenarios to work with.
Rollback Rx made me format my harddisk with their early version. After that, no more Rollback for me.
I recommend FD-ISR.

You can trial it first since install/uninstall works.