My best ever e-skip opening was my first, and being a neophyte and very young to boot, I had no idea what was going on. I was fascinated by what in retrospect must have been a fabulous opening that was heard in much of the U.S., and in some places I was not able to ID. The radio I used was a table model with sketchy analog readout (consumer brand that I don't remember) and back then I couldn't think of any of my friends who had an FM radio. In fact few of them had access to anything with an FM band except for those huge piece of furniture combos that their parents owned and used mainly to play records. I don't recall the exact date, but I'm going to guess it was around June of 1964.
My first realization that something was up occurred early in the afternoon when I tuned across KGAF-FM 94.5 in Gainesville TX, near the Oklahoma border north of my location in suburban Dallas. I was stunned to hear an ID for WRVA-FM Richmond VA and soon it completely wiped out KGAF! I started checking things out around that frequency and I began to hear stations from around the Toronto, Buffalo and Niagara Falls area (WEBR 94.5 began to mix it up with WRVA-FM, then I caught WGR-FM on 96.9). I don't remember much else from that area so far as call letters but I did hear mentions of all three cities.
Later the focus shifted southward, curiously falling west of New York City. One that stood out was WEEX-FM 99.9 Easton PA; several from the Philadelphia area showed up as well, and Richmond's WRVA-FM reappeared, with the skip seemingly bypassing Washington and Baltimore. Moving down the Eastern Seaboard later on, stations came in from North Carolina, then South Carolina; WTMA 95.1 from Charleston was especially strong.
Beginning around 6:00PM the e-skip appeared to be almost exclusively from Florida, with a number of stations from Jacksonville, Orlando and Tampa Bay coming in. The southernmost U.S. station I heard was probably WKAT-FM 93.1 from Miami Beach. When sunset came the band was still active and there were a number of stations in Spanish (Puerto Rico, maybe?).
It was a fabulous day of DX-ing but unfortunately I misplaced my notes several years later (which weren't in logbook format, but they worked for me at the time). And being so young, guess what I forgot to do during all that? I didn't turn on the TV!