Thanks for the comments trocar1971!
I take it you saw this thread:
http://www.speedbagforum.com/forums/...ead.php?t=3497
That was one of my first posts...everything is explained there. I originally had a "U-bolt" swivel, but got rid of that after about a week. I got the Powermill Evil Swivel (two of them actually)...it's the ONLY way to go. Jumpcannon makes them here on the forum. Look him up and get one (or two) it's the last one you'll ever need. Tell him Zaza sent you!
Here's my other platform....lots of history on this one...and I got lucky finding it.
http://www.speedbagforum.com/forums/...ead.php?t=3561 I LOVE this one!
Keep practicing.
Best,
-Za