Just noticed your YouTube link. I had previously watched a few of them and they were very informative.
I hope to get the 436 perhaps in May, and then will be looking at your 436 video's, Thanks for these video's
Also just ordered the BC20 and with Amazon Prime will be delivered on Wednesday, 2/26/14. Price was $21.98 but when I went back to look at it again, price had gone to $24. Think I got the last one for $21.98