huh not sure about the amg.
the amg is the best out of the spyder series however if i was you, i would stay away from spyders altogther.
go for a spyder clone or something alittle bit more ,,, better.
like a black dragun, or a jt 6.0 or soemthing of that sort.
the spyder series seem alittle of the poor quality side.
when i was in a shop before i found the wounders of warps pro shop, the spyder fely very naff and all the parts werent very fitted securly, it just lacked that quality.
thats just my opion tho and other may disgree.
up to you m8.
try some out, ask the ppl in the shop if you can put a couple round throught them, most shop will let you.
try a couple out, seewhich one suits you best