Effective Frequencies & Transfection

My understanding is that using a BBBE, particularly at lower frequencies (4Hz and even 90Hz and under) can give rise to transfection. This is why the Beck protocol warns not to take prescription type medicine and certain herbs and foods (eg garlic).

Can anyone give me more information about the degree of risk or significance of transfection when using a BBBE?

Can anyone tell me if transfection is reduced or eliminated using BBBE at higher freqs - - and if so, what freqs are suggested?

Has anyone used a typical Hulda Clark type zapper as a BBBE device (eg. put the wrist band on the legs with the electrode facing the leg arteries)?

Has anyone purchased the BBBE type wrist band by itself as an accessory? From where would this be purchased? Is there a better alternative than the wrist-band connection for BBBE protocal?

Many Thanks.