Apollo 630 50mhz + 50mhz FPU?

[Whitesnake]

Recently i've been looking into upgrading my Apollo 630 which is currently 33mhz + 33mhz FPU but i have a few questions.
Was there any Apollo 630's made with a 50mhz cpu and 50mhz fpu? I've looked into this and i found a picture of this board http://amiga.resource.cx/gallery/Apollo630.jpg
50mhz cpu but no fpu is this because there was no fpu's made faster than 33mhz for plcc?
I also did notice many Apollo boards with a 40mhz cpu and a 33mhz fpu i'm guessing the fpu can take the 7mhz increase in clock speed.
If i was to change my cpu and put a 50mhz cpu in is it worth removing the fpu? I did explore other solutions such as a plcc to pga converter so i could put a 50mhz fpu in but i'm not sure how successful this would be.  :-)

[Whitesnake]

Thanks for the info guys
It is a job for a steady hand yes but i'm prepared to do it
Should be nice to see some of these 68kasm Polygon based games improve from the mhz increase Wings,Frontier etc

[Whitesnake]

The 33mhz cpu i already have is overclocked to that speed as the serial number has been rubbed off the cpu so i wouldn't risk any further overclock.