Here is a detailed comparison of the SSD "trim" capabilities of CCleaner and "AS Cleaner 0.5"
Test Conclusions:
1) "AS Cleaner 0.5" takes the SAME TIME to trim a drive/partition regardless of how many bytes need to be reset to "0"
2) "CCleaner" takes VARIOUS TIMES to do a "secure 1-pass file deletion" (= reset used bytes to 0, or maybe to 1?).
The more files were just deleted, the more bytes need to be reset, and the longer it takes CCleaner to finish.
For example,
1) I used CCleaner to "secure 1-pass delete ("trim") my 40GB "C" drive.
a) Then I immediately delet