No problem.
Good luck with that-you'll be busy! No experience with the FIM here, but I am still using cryoed versions of the HBL 5362 and 8300H in my line conditioner. I think you'll find pretty big differences between the non-cryoed 8300H (check to see if they now have a steel backstrap as opposed to the 5362's which is brass-the old 8300H's used to be all brass and non-ferrous on the backstrap!) and the cryoed 5362 and 8300H but not so much difference between the cryoed 5362 and 8300H.
For what it's worth, I'm now running a cryoed Oyaide R1, along with the Oyaide wall plate at the wall as the main feed to my system and line conditioner. Never thought I'd spend that kind of money on a receptacle (I did end up e-baying the wall plate at a significant discount) but someone sent me a non-cryoed R1 to try out and I was hooked.
But definitely a lot more money than the cryoed Hubbells, which still represent really great value for money in the $25-$35 range (the Cabledyne's are very reasonably priced at $25 inc. delivery) and a huge upgrade for anyone coming from a stock receptacle.
I tend to agree with Sonic Genius on the isolated ground thing with a typical residential installation. It should be noted, though, (should have made it more clear in my earlier post) that the slimline Hubbell 8300H does have Olin 688 brass non-plated contacts (as does the 5362) unlike the standard Hubbell 8300 which has (like most hospital grades) nickel plated contacts and the full size body of the 5362.
Lall: You will have a lengthy break in period with all those receptacles. It's hard to do when they arrive (as you want to get them into your system right away!) but I'd really recommend you slot them into your house where you can have a very high current draw device like a refrigerator or chest freezer draw on each half of the receptacle for about a week and a half before you put them into your system.
