Have tried the Dye, virtue crown 1 and 2.
Dye did not like at all. I have seen the dye speed feed with all the arms facing downwards with no balls in the hopper its like the arms have lost the memory to return back into the closed position.
Virtue crown 1. I like it have the option to change from a soft, hard feed or a rain cover and these can be changed over in a few seconds.
Crown 2 jury still out.
Cant say about the others as I have never used them but other team members like the Exalt and KM spine