thanks for the reply's everyone
it seems to me the advantage of an electronic caller is it takes the human error of poor calling out of it. Although iv encountered plenty of foxes that come to my poor imitations of animals in distress
i do like the idea of placing a caller away from me 50- 75m/yards to keep the attention off me and on the sound, but looking a foxpros website it will cost me $300-400 to get one. which while im sure you get what you pay for, its still hard to justify when my $15 Tenterfield fox whistle will still call in a fox (not to mention the satisfaction you get by deceiving a fox by your own imitation)
still chances are ill bit the bullet so to speak and get an electronic caller at some stage down the track. there has to be a reason why Foxpro still exists right? must be doing something right