leadcutter
ArboristSite Lurker
I agree, those are too large of trees to be starting out on. I wouldn't send a new guy up a tree that size even with a handsaw and under supervision.
That being said, you have your work cut out for you. I would not even think about attempting to limb and top a tree that size with a handsaw... Just too much work. But hey, if that's what you want to do then by all means, go to town...
On the chunks: You will be dropping chunks, not blocking which is a term that means using an arborist block to lower chunks. I think you will find that it is going to be pretty difficult to push ten foot chunks over unless there is a pretty good lean on the trees. I usually keep it to around 4'-6' pieces once I get into decent sized wood. One option is to tie a rope towards the top of the piece and have someone pull it over if you want to take larger pieces. You can also notch the piece. I prefer to just take smaller pieces and use a snap cut but that's just me.
Sorry i didnt mention it before, i will have a rope to the top of the tree and ill have some one pull over the 10 foot section when i finish the cut...thanks for the support. Is it better to climb on the underside of a leaning tree or the top side?