When I had my Sabre I called PD for a new slider after some brutal openings (mine had the original slider on it). I believe the dimensions were 29" x 31". This was for a Sabre 190 with the dual brake lines. All you need to do is call PD and ask them, thats what I did...
Out of curiosity what size is the Sabre, what condition is the lineset, have you measured to see how the lineset conforms to the chart? Just askin. The only oversize slider that worked well for me was on a 120 with out of trim lines. The slider was original span but 2" wider chord. When PD put on a new lineset I went back to the stock slider, canopy opened perfectly and still does. I'm always looking for new data on Sabre openings and sliders, lots of people will benefit from your experience.
I own a legacy Sabre 210, when I measured the original slider it was 20"x30". Made for some very sporty openings and a few that were painful. I contacted PD and enquired about a bigger slider, they sent me the 26"x31" "newer model", so I installed it expecting it to make a slight difference. To be honest the difference in opening is incredible (so far) it takes a lot longer to open and its way softer. I had to stop rolling the nose so tight and so much just to get it to open quicker. I must say, so far, very happy with the bigger slider.
I have a Sabre 1 190 and i've had a couple of hard openings. I sorted these by learning to pack and doing it myself, not had one hard opening since. top tips for packing a sabre 1, roll the tail a lot I find 10 times works and bungee the break lines this not only slows the opening but also stops line overs :)
it was in Jan of this year! I seem to remember $120 ish. Has worked like a charm! So much so that it was taking TOO long to open. I had to stop splitting and rolling the nose just to get it to open faster!