I have both the eFlash4000(1MB, ZorroIII only.From Elbox)(Yeah I know, please don't hit me) :-) and the KickflashOS4(1MB, ZorroII and III. From IC) and I must say that the Kickflash is better with it's extra clockport.
The speed diff between them isn't noticeable. The Kickflash sits more firmly in the Zorro than the eFlash, that tends to "wiggle" a bit.
My version of the eFlash4000 was from the very first batch so I had to make a little hack on them(yes I have two) for them to work in my A3K's but after that it did it's job.
The Kickflash has only one jumper, enabled(then it reads it's memory and it's write protected) and disabled (then it's not reading the memory and it's not write protected). The eFlash has three jumpers(Write protected or not, read or no read and the third is for future features)
Bootup time is diff on diff Amigas, so I can only tell about mine and it went faster than I had expected so I'm pleased. I'll time them between when the board are enabled and disabled as soon as possible.
Oh, I almost forgot... The Kickflash is darkblue, veeeery nice :-)
