I feel like some backstory would be helpful here. I grew up skiing -- never on a course, but lots of time on a slalom ski. Once I learned, I never had issues with deep starts. Then, over the past 20 years, I was only able to ski occasionally, and although I had some challenges with deep starts after not skiing for a while, I'd eventually figure it out.
Well, now, I'm finally living my dream. On a lake full time, with a proper ski boat, and great weather. And I'm having major issues with deep starts. There are definitely a lot of factors: I'm older, I'm more out of shape since Covid, I'm more overweight since Covid (at 210# about 30lb overweight), a brand new ski, a brand new boat, and a brand new driver.
My ski is a 71" "easy start" ski for skiers up to 250#, and as far I can tell that's as big as they get. I'm working hard at losing weight and getting back into shape, but that won't happen overnight. And, frankly, skiing regularly is part of my plan for that. Over the past month, I've made about 50 deep start attempts with no success (mostly being unable to hold onto the rope, but sometimes going over the front). I also tried out a Cape Reamol harness that puts half of the force onto my waist though a clever pully system -- not great for skiing but great for deep starts. I have got up quite a few times with that system -- a few times it has been really easy and I got right up, a few times it has been really hard and I struggled up thanks to the harness, but most of the time even with half of the force, I still don't make it up. Interesting case in point: one time I had my driver go to immediate full throttle and I leaned back and held on with the harness. The 450lb-breaking-force safety link snapped. So I don't think leaning back and holding on and letting the boat do all of the work is a feasible plan.
For now, if the water is nice, I get up on doubles and drop a ski. If the water isn't nice, I go out there and try deep starts. Just a few days ago, I finally got up without the harness on a deep start and it was a bit of a struggle and I made it up.
OK -- question time. I'm almost certain the issue is a combination of my technique and the driver/boat. Despite not being in shape and being overweight, I know I can get up on a deep start, so my strength, weight, and ski size is sufficient, even if it isn't ideal.
For the boat: I grew up a boat with a 110hp outboard, and now I have a Prostar with a 4.2L engine. When I was a kid, I leaned way forward and tucked into a ball and slowly was dragged up to the surface. But that doesn't work with this boat. In fact, if I lean forward at all, I go right over the front. But, if I lean back too much, I drag in the water and can't hold on.
For all of my near-successful attempts (and my one successful attempt), here is what I did: ski at about a 45 degree angle, back foot tucked up to my butt, arms straight, back straight but not leaning way back, and the driver does a gradual application of power over about 2 seconds (as opposed to flooring it). But even with what I think is a good technique and position, most of the time I'm either over the front, or dragging too much and can't hold on.
So, is there anything obvious I'm missing? Any tips out there for my driver (who has never driven a Prostar before)? I know a lot of skiers value the powerful motor, but at least at my current weight, it seems impossible to hold on for a deep start at full throttle.