On the point brought up by Niel in the relicencing thread. 12fpe is the stated max for FT, lets not try confuse the issue here. The current government organisations tasked with inforcing the FCA (are they??) are battling with interpretation of the law as it is lets not try and confuse them further.
Should SA adopt a fpe regulation (12fpe is only accepted as the FT standard because that was the British limit at the time), will you be happy with your air rifle being confiscated at every road block because it had to be tested, well you don't expect every road block to have a crono a scale (in grains) and a calculater on hand do you??
What we all want to see, if I may be so bold as to speak for the majority, is that the statis quo (spelling Brian?) remain. I agree with Avion, remove roadside selling if we can (although they are not breaking the law), any aditional regulations applied to air rifles will just go further to confuse the issue.