suspension adjustment

Just a quick disclaimer here, it's been 10+ years since my last sled. Just got the first ride in on my '18 Summit SP, looking for any tips on what I can expect for tuning the suspension. I will eventually upgrade, but I figured I'd better re-learn how to ride first! Thanks!

After pulling the tarp off ol' faithful (2010 RMK 600) to start the pre-season tuning, I realized the sled had a lean to its left side. After a few simple tests applying pressure at various points on the sled's chassis, I believed I had the problem narrowed down to a weak/blown front shock...

On my most recent trip to Wyoming, I scored the pistons on my 2012 M800 Sno Pro 162 and ended up trading for a 2012 M1100T Sno Pro 162. I noticed that the rear suspension had a lot of sag on the top end. If I lift the back of the sled up it will max out and stay up. As soon as I sit on it goes...

I'm on a KTM 520. The front ski feels likes it's being buried. On trails it's like fighting a bull. It's wearing me out. Side hilling is even a fight it wants to grab every little rut. Very frustrating. Any suggestions on suspension or fork adjustments to make it lighter on the front end? Help!