I tried this the other night on two tables. Probably spent about 45 minutes total before I went onto something else.
Table 1 was a tripple shimmed GC4.
Straight in strict was 4.
Using rails was 5.
Second table was 7' Diamond Barbox, with big pockets.
Straight in strict was 5.
Using rails was 7.
I'm an average player, high C range to low B when in good stroke.
A few comments:
The numbers above were my best. I'd usually end on two.
It was super difficult for me to draw back exactly straight. Even when I had BIH for the first shot, I'd usually be off 1/8" or so on the second, which would mean the 3rd shot would be the end.
When I would get off line 1/8" or so, I tried a few time to get back in line by spinning the ball. That did not work at all.
When I got very far out of line and went to the rail, in 45 minutes of trying this, I only got back perfectly in line to use straight draw and attempt the struck rules one time.