English Amiga Board - Problems with Sensible Soccer install

Okay, I'll try to explain this as well as possible. First my setup:

WinUAE 1.1.1
ClassicWB P96 version
CPU: 68020 + FPU
CPU Chipset speed: Fastest possible
4Mb JIT
2Mb Chip
32Mb Z3-Fast
4Mb RTG
Kickstart v3.1 (A4000) rev 40.70
AGA chipset

As it's ClassicWB, WHDLoad is already pre-installed (v16.4). I chose to replace the old RawDIC with v4.2 (but kept the old one on the side just in case), and additionally installed the SPS device and TrackWarp library. I have all the Sensible Soccer SPS images.

Now my main problem is: despite creating the data files okay, upon starting WHDLoad complains that they're broken or are of an unsupported version, even though I used a) originals, and b) versions it supported (original, European, International).

It started with me inserting the original Sensi Soccer disks through WinUAE and having RawDIC 4.2 read them from the "floppy drive". They read okay, but the game wouldn't work afterwards anyway. I'm not sure whether this has anything to do with the fact I set the floppy speed to 800% at the time.

Then I tried to install again, but this time used the "Select File" option and loaded the IPFs through that. Extracts the data ok (a lot quicker of course), but again WHDLoad complains about the files not being 'exactly' right. This happened with all versions of Sensi Soccer in existence.

I'm not sure if it's some kind of incompatibility problem somewhere, wherever it's a problem with RawDIC, or whether the slave requires a WHDLoad newer than 16.4. The readme just says "WHDLoad 14+ and RawDIC".

Do any of you know where I'm going wrong here? Thank you, and I look forward to the impending replies.