ghost792 wrote:Has anyone attached one of the newer type ALICE buttpacks to the lid of their pack. I just realized last night that my old canvas buttpack fits perfectly to the strap guides for the closing straps, but I'm concerned the clips might hurt them.
Run the 'upper' set of straps uder the LC-2 frame top, thru the ALICE ruck "D" rings and back to the butt pack.
The lower straps can be fed thru the top cover gudies, then on down to the magazine carrier loops.. Might be easier to run the lower straps out ot he sides and tie into the side loops. Make it a bit easier to get inside.

As you see, that can make for a tall package - and in underbrush or in the trees, can make it difficult to travel.

Using the magazine loops to hold the 'top' straps on the butt pack - the bottom straps go down to the bottom of the ruck using the bag carrier loops.
This setup will pretty mcuh cost you the use of the middle outer pocket. You gain easy access tot he top of the ruck. The butt pack here is full of freeze dried chow, any real weight that far 'back' on the ruck would make it far more misrable to carry - no mean feat in an ALICE.
If not carriing a MSS/or bag apron, you could try attaching the butt pack to the bottom of the ruck, much like the OP has done with the MSS carrier.
You'll have to decide what terrian you'll be in while you carry the ruck, what is the load and so on. Good luck, the LAICE system does offer the many possibilites for configuration.
(Ninja edit)

It is possible to attach sustainment pouches to the side of an ALICE ruck, - this really limits what goes into the outside pockets on each side. The pouches will also flop around a bit. (Shrug) YMMV. Just thought it was interesting to see.
Over the years I tried to see how little I can carry vs how much. For a BOB, I can see where how much you can load up matters....