I have tried a lot of achors and I always go back to the Richtor Anchor. I have a pair of 25’s in my boat now. They key is making sure you have a big enough one for your boat.
Also, those digger anchors are JUNK!!! That mechanism gets full or dirt and it won’t work. Everytime I see someone buy one I just shake my head.
Despite what Derrik posted about the Pro Anchors I think he has decided to go with the Richtor also.