Whats your opionion of the interlocks over subpanel transfer switches?? i see using the interlock can be cheaper, but some of my fellow electricians dont like them and they prefer the standard subpanel transfer switch. They dont like it when you can just remove the panel and then both breakers (utility and generator) can be turned on at the same time.
Interlocks are UL approve and a 'legal' type of transfer switch. Whats your opinion?