Black and White Conversion Percentage

I'm curious as to how many or what percentage of images that you deliver to your clients in black and white. I love black and white images but to properly convert takes too much time. I usually use channel mixer or go lab color -> grayscale -> duplicate layer on multiply -> adjust opacity to liking (add vignette maybe) -> convert back to sRGB. This takes alot of time if you have 100 images you want to convert.

I am thinking of just doing a batch convert of the images to B&W when delivering to the client. That way they can choose. I've experiment in a couple of ways. First is to convert to color jpeg (i'm using raw btw) then run a saturation 0% on them (using breezebrowser). Results were horrible to say the least. Tried some other variables, but they didn't do much. Then I went back to the source... adobe bridge, set all images to -100 saturation, then convert. This time the results, were pretty good where 90% had good contrast and pass my level of quality.

Though I'm still not sure whether to do this batch and deliver thing or not, since some images have so much more punch in B&W.

What are you doing now? before? What works?

I generally do wedding prep in B&W, "formals" and ceremony in color, a select few in B&W, then the reception is generally all B&W. I run a batch on all the bw shots but I go back and do a quick bump in levels or curves to give it punch. Then when they order, especially if its a big picture or ones that will go in the album I go over each one to ensure they are all perfect!

i only do black and white so my cusstomers know in advance that is what they will be getting. but i love the pp part of the shoot almost more than the shoot itself so converting is no chore for me.

For proofs I do all prep shots B&W, and a few others that catch my eye as good that way - sometimes none, sometimes 20%. Proof B&W conversions are done using the CS3 ACR "convert to greyscale" function which is great. Album or prints gets done however the customers wants, but they generally trust my judgement.

I use the gradient map tool an convert to monocrome. I've found the best results this way. There are also some good kubota actions that I like to use for bws.

I do a LOT of BW conversions, mainly because I was trained on black and white film a long time ago so my style developed with that as a base medium.

I am liking Adobe Lightroom's flexibility in doing black and white conversions. You can do any kind of duotones (like sepia) and channel mixing right on the RAW file without even going into CS2. It's awesome. Then you can save it as a lightroom preset and zap 100 files in one shot. Whoa... I can't wait for my version 1.0 copy to arrive later this week or next week!!!!

I'm working on duplicating a lot of the Kubota BW/duotone actions in lightroom. (Chocolate Syrup is my fav) Anyone else do this successfully?