I was getting pretty smooth with my snatches at around the three month mark, but the best I ever did was 94% of bodyweight. Best clean was 88 kg at 80 kg bodyweight. Meanwhile, high school kids were putting up double bodyweight with ugly "football" cleans. I was just plain weak and very slow by comparison.
If we're honest, once you're using straps, whipping/bouncing the bar (it's significant even when you can't really see it) and taking an excessively wide catch to get as low as possible then you're really looking at a completely different movement. One that for a lot of people ends up with them lifting far more weight than they can actually strict high catch powerclean and sometimes exceeds what they could perform a full clean off the floor with. Lanky and explosive guys can often end up end up high catch powercleaning more than they can full clean. If they spent a huge amount of time working on full cleans and front squats then it would likely go up a lot and exceed their powerclean, but not by much. There are guys in weightlifting who can powerclean almost as much as they can clean and jerk. Pablo Lara did 195kg powerclean and 205 clean and jerk.
There's a lot of talk about efficiency, or being able to snatch or clean a target percentage of front and back squat weight. I guess I wasn't all that weak (back squat near 2xBW and front squat about 75-80% of that), but I was slow. My vertical at the time was 22" with the occasional 23". I am very curious to see how much better I would do now with about the same squat strength but a much higher vertical (27" usually with the occasional 28"). I just started Smolov and don't want to mess around with max snatch attempts right now, but I am very tempted. Of course I could just wait till Smolov+Feduleyev ups my squat strength and I get my vertical up another 3-4 inches and then see.
345 BS x 22" SVJ = 74 kilo snatch
405 BS x 32" SVJ = ?????
Ratio of classical lifts to squat strength varies on bodytype anyway. Think about Syzmon Kolecki doing 232.5kg at 94kg with a 240ish front squat and back squatting only a tiny bit higher, and Kakiashvilis doing 235 at 90kg and 99kg with front squat likely nearing 300kg.
If you're unexplosive at everything you're going to suck at weightlifting. If you're lanky and struggle with technique and don't really feel comfortable or explosive when performing the classic or power versions then they're probably not going to make you any more explosive anyway.
I used working up to a moderate-heavy single alternating between snatch and clean and jerk as warmup for my Smolov base cycle. Worked really well. I saw zero gains in snatch/clean and jerk and SVJ until weeks later though. Slowed down during such intense devotion to squatting.
Sorry to keep on with this, but I was banging my head against the same snatch and clean numbers for months and I would be thrilled if my current training actually improved my classic lifts. The classic lifts themselves are often pushed as ways to get stronger and more powerful, but I'm more and more convinced that for a lot of people, the classic lifts are a demonstration of strength and power and that squatting and plyometrics are superior for improving strength and power.
How could explosively lifting heavy weights not get you stronger? If you suck at the classical lifts and can't lift much realtive to your strength (related, but not interchangeable with squat numbers) then you're not going to get a great strength stimulus out of it. For almost every athlete the classical lifts aren't appropriate and the power versions are probably not going to be a fantastic max strength stiumulus but they are great for improving explosive strength as part of a program including strength work. For weightlifters it's a different story.
Given your build I would say you should use explosive/reactive squats and jump squats, short sprints and low box depth jumps to work on explosive power. Keep working on the powersnatch and powerclean and see if you can get to the point where it feels effective. Forget the classical lifts unless you really, really want to do them.