most likely gonna replace my RV-5 for being a bit too processed & metallic sounding, even with the tone knob all the way down. so which of these two would you suggest? 1. again, looking for natural non-metallic sound. if it's mostly a toss-up in your opinion (which i hope it is) please say so cause i'd really like to go Verbzilla for the extra features. 2. anyone had or heard of any reliability issues with these Line 6 Tonecores? i dont wanna have to baby it. thanks!