Use that as a starting point. Don't feel you cannot tweak where you are standing a little left or right depending on how much your ball is grabbing the lane. I cannot remember if you have a polyester spare ball or not. If you do, 36 will be about where you want to stand. If you are using a high performance ball for your 10-pin shots, then you will most likely have to move left of 36 while keeping the middle arrow as your target. Of course, this also depends on if you drift up to the line and if you do, by how many boards you drift and in what direction. I'm not going to say that 36 is going to work for you, but at least it gives you a starting point, right?
Oh, one other thing. This is a big thing, actually. Make sure during the practice time your league gives you that you try to pick up the 10 pin a few times. This will allow you to make the adjustments during practice so that when you end up leaving a 10-pin during the league, which is going to happen, you'll have already done it that night. I love having that confidence that I've already picked-up whatever I'm facing, so doing it again will be a piece of cake.
Okay, that's it for now. Go give that 10-pin heck on Friday night. Let us know how it went when you get a chance. Oh, and remember to have fun.