Newbie song creator problem (EOF)

[pskepsilon]

I've been tinkering around with creating songs for FoFIX using the EOF file editor. I've read most of the tutorials and followed the EOF-specific tutorial very closely in trying to chart a song. The first time I attempted it I kind of just guessed at the BPM (and it ended up being roughly twice what it should have been) and then just charted the song by hand. It was pretty much fine until the end of the song, at which it started slipping out of sync.

I figured that was understandable because I didn't bother creating a real tempo map and using anchors, so this time I started from scratch and created a tempo map according to the tutorial. I set the beat on the first note to the BPM I got from MixMeister, and then started placing anchors using the on-beat note placement/clap/adjust technique. I placed them throughout the song and then played through with the metronome at full speed. It sounded good, so I began charting.

The problem on this attempt is this: instead of being off sync at the end, it's WAY off sync at the beginning and then eventually starts to get better. The thing that really gets me about this is the fact that EOF shows the notes at the beginning playing exactly when they should, but when I play it in FoFIX the music starts much earlier than the notes first appear. Like I said, it's not like it's off by the same amount the whole song: it seems to be WAY off at the beginning and then kind of hit or miss, but mostly solid, as the song progresses. The thing that I noticed is that the first beat or so of the song is at about 155 bpm, and then I have a beat with the first note of the song, which is where the real bpm starts (90 bpm.) I got it a little better by adjusting the beginning bpm to 90, but that seemed to throw other notes off of the beat lines, even if the sound is relatively synced up.

Has anyone run into this and know why it happened? Would it have been better to do it like the built-in EOF tutorial suggests and drag the first beat to the first note at the outset (thus creating a "delay" value)? I'd like to know what specifically is causing this so I can avoid doing it in the future. Thanks in advance for any suggestions.