You won't switch back UNLESS you're one of us cursed souls whose guns punch holes in the primers so we can offset the low price of the primers by replacing burned firing pins every month. It happens!
Check them after you fire them; if the dimple in the primer is black, you punched a hole in at and there will be a corresponding crater on the nose of your firing pin which will make the pin more likely to punch more primers and on and on until you replace the pin or remove and repair it.
<blockquote><I>"Must be because of the angled firing pin. Has never happened in my BT. Just use your top barrel."</I></blockquote>Yes, I'm sure it's the angle of the firing pin and that I could probably address the issue by using the over barrel. But I'm stubborn. I like the way my guns feel and sound to me when I shot from the under barrel but I don't have the ready cash to invest in an unsingle. I'll simply avoid Chedittes for primers that work as they should where I prefer to use them!
Switched over a few years ago and never looked back to Winnies. I shoot targets with a few Brownings and a couple of Berettas and no punching through primers and I've never had a fail to fire or squib. Cold winter has not been a problem.
<blockquote><I>"why then do only certain guns have the problem?"</I></blockquote>It ain't complicated but there's more than 1 reason. I've had some guys who know about such things look at the primer strikes from my XTs. Seems that since the under barrel firing pin comes down at a steep angle from 1 side, it does more than make a dimple in the primer...it stretches the primer cup sideways as it dimples it. If the metal is too brittle, it tears instead of just stretching. Voila! a hole.
I have an XT that started punching Nobel primers after I put a new firing pin in it. New style Browning pins are longer than the old ones AND have a different nose profile as well. I dug around in the parts box and came up with several new old short pins. The old pins are at most .015" shorter than the new ones but the shorter length and the different nose shape is enough to eliminate punching the Nobels completely. Browning supposedly changed to the new pin because of whining about light strikes and FTF with cheap shells. So they oblige with a longer pin that punches holes in those shells and needs frequent replacement; smart marketing at Browning!
My son(Osker),and I have shot 50 to 60K of them through multiple guns(1-BT99,2-CGs,1-S Sietz,and 1-Perazzi Mx10).We haven't experienced any problems that have been previously mentioned,but thats just our findings.
If you switch to cheddites, they will make the primer socket slightly larger, so other primers might fall out.
Aside from that, they are well worth it. I have loaded hundreds of thousands of them without problems.