I like the 63's in the rear, they make it ride nice with or with out the top on. I like the drop shackles. I had the same set up on my first gen & never had a problem. As for the blocks, it's not bad cause the blocks are only 2" not 4" or 5". I only put the blocks in to level off the rear cause the front was higher than I expected when I did the SAS. The front is still higher by an inch or so but I don't want to go any higher. I'm going to do RUF soon & I'm going to lower the front so I can take the blocks out.
What front springs are you running again?