Ok, this morning on the way into work I saw an Agwagon (cropduster) spreading the poison. I was shooting in 12mp and then switched to HSC mode. I had shot about 8 or so in full mode. I was unable to shoot in HSC after I switched, the display said busy. I was thinking that I should be able to switch on the fly and it still fire. Am I wrong? After the green led by the cf slot stopped I was able to shoot. This happened several times before but never thought anything about it. Is this normal?