Don't worry about going "AAAAAHHHHHH" to the ground. Make sure (if using a strap on stand) that the platform is up, attach belt or chain sinch tight, then drop the platform-cantalever effect. I am 6' 1" and 235 and I jump up and down never went boom. However if your scared of going boom, it won't be relaxing or enjoyable to sit in a tree for any period of time. I would suggest trying the ground, in many areas where I hunt this is the only way available. Let's put it this way if you can successfully hunt the ground, tree standing will be a cake walk. Ground hunting keys are breakup or backing, sit in shadows (so no sunset area's that will cast forms out into any opening), wind, concealment, drawing ability with minimal movement (don't sit on the ground if you can't shoot that way...take a stool, log something) and shooting lanes. I have had deer within feet from me on the ground and killed more this way than from a tree.

Wordy me way over your limit, have fun!