Ok, A friend is selling me his 2 year old MINT condition Mathews Switchback.He is Buying a new DXT.
The SB is fully loaded,i am getting it for $550.

My question is, if I have to change my draw length to 28 instead of the 29 that it is, how much am i going to have to spend on a new cam, and labor to install.??
Also, would you go with a 65% let-off cam on this or 85% let-off cam, .

I still think It will be a good value buying this, even though I must buy a cam.and have it put on. What do you guys think?

If you think 550.00 is a good deal then it is.
A used cam in good condition should run you about 25.00 to 35.00 bucks
I don't know what a bow shop would charge to do it,
but it should'nt take them 15 minutes to swap one out.
As for what let-off you should get thats your call, you are the one that has to
hold the string.

xx

Check ebay for a good used cam for the price xxkilla stated. The Mathews dealer around here charges $50/including labor for a cam swap. You could check with a local dealer if you have one nearby.

$550 for a loaded SB is a good deal.