Just for the sake of conversation how do you hold your Rifle while bench shooting. 
Do you treat it like an egg that is about to break or do you grab on and hold on?
Do you like cheek pressure or no cheek pressure?
Do you put your thumb on top of the tang or alongside?
Do you put your shoulder into the gun or just lightly touch it?
Do you pull the trigger straight back or do you use side pressure?
Do you hold on to the rear bag with your free hand or stay off it?
Well what do you all think? 
This should get us off to an interesting start!

I'm with Corky on this one.

Consistency, once you find what works for your particular rifle, is the key.  Your rifle will have a lot to say about how it wants to be held, depending on weight and stock style, among other things.

Greg

The 'Wall is a 32-40.  I have tried several locations on the rest.  The barrel just in front of the forend works well as does the center of the forend.

I have one of the detachable sleds, but I just can't bring myself to add it.  I am afraid it will work and I hate to breakup the lines of a beautiful rifle.

Corky

When I started shooting the .22 lowall off the bench I found it to be VERY sensitive to cheek pressure and to triggerhand position  and pressure. the round bottom, schnable-tipped splinter forend really looked cool but was obviously not designed for bench shooting.  I whittled out a modest looking flat bottomed forend that was much more stable with a small step that let me position it consistantly fore-and-aft and it improved my scores considerabley.   
With the 45-70 hi-wall I don't have a clue.  there is so much excitement going on each time I touch it off I can't keep track of all that stuff.  my guess is that it'd benefit with similar treatment.

Mr. Frog I have seen George Eickoff shoot that way! 

He would get down on his Rifle line everything up in the scope then sit straight up and watch the conditions, when he saw what he wanted he would reach over and touch it off with his finger while still sitting up! 

George is hard to beat, it works for him.

Hi Corky, I noticed with interest your comment about having a sled.  I might wish to hang one on a 28-30 bench rifle that is nearing completion. Where could I see a pic of one & buy same ?    Ken

Hi Ken, glad to see you made it!

The device I have is called a Possum Hollow Foreend Stabilizer.  You can see a photo and description at Sinclair's website, (You need to Login or Register to view media files and links)

I haven't tried it as yet.  I believe to be properly affixed it takes a swivel stud which I do not have installed.  Talk about messing up an original!

Corky

Hi ya Pete.  Guess I should hang my head in shame but there is a reason.  The bbl was hung by our Mr. HST (Glenn F. ) who had to do it in his spare time which he had run out of. I then had the bbl/action sent to Steve Earle for shaping (it was a blank) oct to round. Steve got tied up at work & couldn't get to it AND, he is also trying to get those Wessons out . Steve tells me that he has the bbl cut to straight oct. but still needs to put a slight taper to it before he turns it round. In the mean time , I have a butt stock (crotch amer. wal.) finished and have engraved the action with just a touch of gold and about 50% coverage banknote scroll. As soon as I can get the bbl/action together, I will return it to Glenn so he can cut the chamber. I'll have to buy a reamer for it I guess as he doesn't have one. I will send the action off to "Classic Guns" for their color case of the action & carbona bluing of the lever & breechblock. Once all this stuff is done, I guess it will sit in the rack with the others (about 20 or so) that mostly remain unshot.  I know, I know ----   take the time to go shooting but there are are so many client jobs to be done so whats a guy to do ???  Maybe the Frog will get down and shame me into doing some shooting this summer.

Thanks for the info on that sled Corky,  maybe I should buy one to sit in the rack with the rifle to keep it company.

Ken