What's wrong with them? If they're not in PCGS plastic, there's something wrong with them. I'm an experienced lurker on the PCGS forums, so you can trust me when I tell you that. Everybody knows it.
The thing I love about SLQ's is that it is a beautiful coin and it is a rather short series, going from 1916 to 1930. I started my set in just fine condition, then upgraded them as I could. Some dates are just out of reach.
I've obtained several coins in slabs and the first thing I do with them is to break open the slab, take the coin out and put it in an Intercept holder. My type set is a set of coins, not of slabs.