Cross string through a grommet with a main - Over or Under?

CosmosMpower

Hall of Fame
When you have to put a cross string through a grommet that is blocked, how do you decide whether to go over or under the existing string that's blocking the hole? I generally find the path of least resistance that lets me feed the tip through but sometimes that results in a situation where the strings don't sit perfectly flush on the outside of the frame after you tie off. Does it matter from a tension loss/performance issue if you go under/over?
 

jim e

Legend
You want the string to lay flat and no crossovers. When you have a blocked grommet opening, if you plan ahead and place a scrap string against the outside of the frame when you place the main string that skips , that blocks the hole, now when you have to place the cross string through, you can lift up on the scrap string and place the cross string under the string that blocks, or push down on that scrap string and go over it.
It's really that simple. Then strings lay flat and no crossovers.
Crossover on head end can lead to damage string with scrape, and crossovers at throat just looks plain sloppy.
 

CosmosMpower

Hall of Fame
You want the string to lay flat and no crossovers. When you have a blocked grommet opening, if you plan ahead and place a scrap string against the outside of the frame when you place the main string that skips , that blocks the hole, now when you have to place the cross string through, you can lift up on the scrap string and place the cross string under the string that blocks, or push down on that scrap string and go over it.
It's really that simple. Then strings lay flat and no crossovers.
Crossover on head end can lead to damage string with scrape, and crossovers at throat just looks plain sloppy.
If you pull up on the scrap string will you lose some tension on that tie off?
 

jim e

Legend
If you pull up on the scrap string will you lose some tension on that tie off?
Your pulling up a string that's already tensioned, moving it a mm for a short time should not effect tension. If you are worried if scrap string is too thick and will lose tension when you remove it, then use a very thin scrap string like a thin badminton string.
If it's a tieoff like your question asks, then learn to tie a good cinched up knot like a parnell knot, as knot drawback can cause tension loss, not like a thin scrap string lifting up an already tensioned string.
 

CosmosMpower

Hall of Fame
Your pulling up a string that's already tensioned, moving it a mm for a short time should not effect tension. If you are worried if scrap string is too thick and will lose tension when you remove it, then use a very thin scrap string like a thin badminton string.
If it's a tieoff like your question asks, then learn to tie a good cinched up knot like a parnell knot, as knot drawback can cause tension loss, not like a thin scrap string lifting up an already tensioned string.
Yep I use Wilson Pro knot or Parnell just depending on how much room I have. Thanks for the info.
 
What Jim said is true. If you have planned ahead, you loop a piece of scrap string over the string that's doing the blocking. Then, when it comes time to put the cross through that hole, you can physically pull the blocking string to one side or the other, depending on which way you want it to go. This is more important at the head, than at the throat because if a string sticks up at the head, it is more likely to be scraped on the ground while playing.
 

Irvin

Talk Tennis Guru
Does it affect the tension either way if you go over vs under?
It should make no difference on way or another. When I string crosses when a cross enters a grommet going over the first intersecting main I prefer going under the string blocking the grommet, and do the opposite on the other side.
 
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