GET THE WINCH YOU WON'T REGRET IT
We have had one for two years now. Best money spent.
My chipper is almost like A Lopa's. Morbark 2400 with the hydraulic winch that has a neutral for free running the line out.
We tried feeding our chipper with our grapple truck. Didn't work so great but the winch is much more productive and easier to work with. It won't be like having a mini loader on the job with a grapple but it comes close if you have the right set-up. You don't have to trailor a loader either because with a winch it is always there on the job.
A large grab hook and a line like Amsteel works the best.
You would be surprized what you can do with one.
You can driftline large leads right onto the back of the chute and then rehook unto a smaller limb and feed the whole mess into the chipper if your chipper has a forward ,reverse and neutral functions for the feed wheel. Driftlining really works good if your using a GRCS. We have literally floated large pieces over the top of hedges and small valuable ornamental trees without ever touching them.
You can pull over smaller multi stem trees in one cut. Just encircle the whole mess with the line. Tension your line a little. Make your notch and back cuts but don't cut all the way. Let the winch pull the whole mess over using the last of the hinge wood. Works great if your down in a steep ditch. You can pull everything out and up onto level ground in one shot. Snap cuts or z cuts work better for the smaller stuff but the principle is still the same.
If you have pull across a yard and can get the butt ends of several large limbs or leads going the same way, then using a series of half hitches on individual leads with the final lead hitched with the hook you can pull the whole mess to the chipper. The trick is to keep the butt ends up especially the first one. Live limbs dragged on the tips do little damage if the butts can be dragged off the ground, dead pieces will put marks in a lawn.
Another trick is if the tree can as a whole can be winched but is too big to get to the chipper in one piece. You cut it in half but leave enough wood so when it folds in half your winching two pieces at once instead of two.
We have done other crazy stuff with the winch but these are the highlights.
Even though a winch has it's limitations. It definately is a labor saver and when it comes to resale time it makes your chipper bring a higher price