Rufus sand, alfheim sand, gladsheim sand. Its all the same stuff.
You'll hear people say Rufus sand is different. It isn't. Rufus is just notorious for having uneven lies, and often when you're in the sand there, you've got a longer shot than you'd like to have. Compound that with the wide range of contact you may make (64-82%) or something like that, and you can see why the distances your ball travels can be so inconsistent.
Example: 200 yard sand shot. At 64% contact you would need to add a little more than 50% to the total yardage. The math on that is 64/100, but we need to reciprocate that to get 100/64. That comes out to 156.25%. 200 yards multiplied by 156.25 is 312.50.
Now, good luck hitting the pin since that is the only way your ball will be stopping on the green. LOL
Now you're left with a 20 yard shot to the hole, from the sand. Your best bet to gauge these shots is to go to the practice course and chart your distances out of the bunker with no spin, 1 dot of spin, half spin, full spin.
Make sure you've got a flat lie in the bunker. It is good to know the different amounts of spin for a few reasons. Sometimes I'll use a little extra spin just so I can try hitting an even 50% power instead of an odd 47%, other times its to counter a down slope past the cup. Its also useful for the really short ones so you don't have to triple click in a split second.