I have the 44 pound Bruce anchor, shackle, swivel (with pin in the chain) 250 feet of 3/8 chain, then a chain to three strand splice to 15 feet of 5/8 nylon line to an eye splice with 5/8 SS thimble to the dead bolt with backing plate in the anchor well. I can cut away the anchor at the nylon in an emergency and I like the shock absorption ability of the nylon in case of a runaway anchor.
My second anchor on the bow is a Danforth 20H connected to 40 feet of 5/16 triple B chain, chain spliced to 300 feet of 5/8 8 plate nylon dead bolted to the anchor well with a thimble, shackle and dead bolt with a 4 x 6 in x 3/16 SS backing plate.
If I drag I (which has only happened three times in 45 years) I come back up into anchor position and my wife holds position. I go foreword and remove the Danforth from it's chain and using some 3/16 in line I always have hanging on the binnacle, I hang the Danforth with quick release knots from the pulpit. I then remove the 10 foot length of 5/16 SS chain that I have stored in the anchor locker and connect it to the Danforth and lead the chain for easy deployment. I connect the other end to the eye at the top of the retrieved Bruce and let the excess chain hang down forming a loop between the two anchors. I use shackles and nylon zip ties to secure the pins after tightening them to make the connection. We position the boat and I slip the knot on the Danforth and gradually lower it into the water to the full 10 feet. I then pay out the Bruce in the normal fashion while the boat pays off backwards until I have reached the desired scope. I then set the anchors normally. The result is that the Danforth takes the set first, I have 10 feet of chain laid out straight and then the Bruce rolled up and usually not completely set. The action of the boat over the next few hours sets the Danforth deeper and deeper allowing the Bruce to complete it's roll in and start to bury. I've never drug a second time with arrangement.
Some might say to get a better, more modern, anchor then the Bruce and I wouldn't have to deal with this. I say to them 3 times in 45 years isn't bad and the roll bar anchor type anchors won't fit my anchor platform. Deploying the second anchor like this isn't very hard to do and takes very little time. Nobody ever wants to anchor twice especially in foul weather but this is about the easiest method I've ever found. Much easier then trying to set a second anchor and all the possible problems that go along with that.