David Hollaran Twisted Sister opinion?

[wjones15]

I have three of David Holloran's pot calls.  Green Slate, CM, and MM2.  To my ear, Both the CM and MM2 are very similar.  Is it worth it, getting the Twisted Sister?  Its the same as the CM, just a different wood type, Correct?  If anyone has these calls and can give me an opinion let me know.  I love raspy calls.  Depending on the striker both the CM and MM2 get really raspy.  Is there enough variety to justify getting this pot?

[Happy hooker]

The two best and most confidence calls I own are the twisted sister and a stumpy ceramic. The sister just has that right sound.

[MDTOM84]

Out of all of David's pots the twisted sister is his best in my opinion. I think it's his most raspy of his Crystal surfaces.

[vt35mag]

I have the CM and TS, had the MMII.  Based on the sound files I made of myself playing them, the TS and MMII were nearly identical.  Since they were so close I decided to part with the MMII.  They both play well, but the TS plays easier and has a little more natural tone being its over slate and not aluminum. The CM was noticeably different than the TS and MMII.  Higher front, less rasp.

Out of all the calls and variations of calls he makes the TS is my favorite.

[va longbeard]

The twisted sister is my favorite call from David.