Early boards are prone to have this issue.
I have a Microbotics 1230XA with 128 Mb in it. And use to use several PCMCIA cards with it, no problem at all. Only only "con" is the lack of an built-in SCSI controller, if you want one.
Of course Blizzards are the best accelerators made for Amiga. With a optional SCSI controller where you can put another 128Mb SIMM.
Some GVP are very good, too. But with a problem related with the (in)famous special SIMMs.
Some Apollos are good (not the 1220), but have minor issues with some 1200 boards.
