Proposal for highlighted letter

[wese3112]

Hi, I found your program and I like it a lot. I don't know Perl, but I want to make a proposal for the algorithm that finds the highlighted letter.

For a Spritz-like reader in Python I wrote for myself I came across this:
http://adonis49.wordpress.com/tag/optimal-recognition-point/
It's about the optimal-recognition-point and says that it's 'immediately to the left of the middle' of the word, whether it's a vowel or not.
For my script I used the 'golden ratio' idea (https://en.wikipedia.org/wiki/Golden_ratio): the letter that is ca. at 30% of the word from the left and I find it very comfortable for reading.

This is my proposal for finding the optimal recognition point (variable pos, starting from 0 as the first letter) in a word (python-code):

    if len(tword) < 3:
        pos = 0
    elif len(tword) >= 3 and len(tword) < 7:
        pos = 1
    elif len(tword) >= 7 and len(tword) < 11:
        pos = 2
    else:
        pos = 3

I'd love to hear what you think about this.

Regards from Germany