I've had a number of people approach me about the difference - or even if they are the same? Single length is exactly that - 1 length for all irons, TLT is progressive lengths where the length and lie are mathematically tied together. Both systems will put the player in 1 singular address position allowing a very consistent swing to be developed.
A standard set off the shelf will often have 4 inches of total length differential with only 3 degree of lie separation.
Single length of course will have zero length difference and zero lie difference.
There are several ways to approach the length increments within TLT. My standard is 1 degree of lie separation - between each iron - where the length increment is less than 1/2 inch between the long clubs and less than 1/4 inch between short clubs. This combined from longest to shortest is just under 3 inches of total length vrs 6 degree of lie separation - while still maintaining 1 athletic address position.
To do a TLT length reduction the approach would be to have 1/2 degree of lie difference between each iron and its relative length. So with this approach having set the 4 iron to 61 degree of lie and the PW to 64 degree of lie - there is only 1 inch difference between the longest and shortest clubs. This gives a small length increment advantage so the player does not end up playing a too short long iron nor a too long short iron. Picture a 37 1/2 inch 4 iron verses a 36 1/2 inch PW. These lengths of course will vary depending on the size of the player and the relative fit.
So for players wanting to consider single length - there is a TLT method that has a slight twist but will still produce the single athletic address position just like single length.
A standard set off the shelf will often have 4 inches of total length differential with only 3 degree of lie separation.
Single length of course will have zero length difference and zero lie difference.
There are several ways to approach the length increments within TLT. My standard is 1 degree of lie separation - between each iron - where the length increment is less than 1/2 inch between the long clubs and less than 1/4 inch between short clubs. This combined from longest to shortest is just under 3 inches of total length vrs 6 degree of lie separation - while still maintaining 1 athletic address position.
To do a TLT length reduction the approach would be to have 1/2 degree of lie difference between each iron and its relative length. So with this approach having set the 4 iron to 61 degree of lie and the PW to 64 degree of lie - there is only 1 inch difference between the longest and shortest clubs. This gives a small length increment advantage so the player does not end up playing a too short long iron nor a too long short iron. Picture a 37 1/2 inch 4 iron verses a 36 1/2 inch PW. These lengths of course will vary depending on the size of the player and the relative fit.
So for players wanting to consider single length - there is a TLT method that has a slight twist but will still produce the single athletic address position just like single length.
THANKS for your detailed explanation. BUT, just to get your approach thru my thick brain, would the following be correct: we line up all the irons, bottoms flat with the ground, and top of the grips leaning on the wall. Tips of the grips would be all at the same height, but the angle of the shafts would be different, while 1 length irons would have same height AND same angle ?
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