Cliff, try and work the white pipe clay around the shafts, those areas are probably your best bet. Some other members have taken their 705's to the above mentioned areas with a lot of frustration, mainly due to the prolific hot rocks. Jupiter creek is a lot cleaner than Chapel Hill, chapel hill is littered with all sorts of junk, including bits of brass plate that some ***** cut up and threw all over the place - very frustrating. Chapel Hill is also littered with deep and dangerous shafts, some hard up against tree trunks and covered with sticks and leaf litter, so very hard to see, and not a place to walk backwards.
The main workings at Chapel Hill are Christmas Rush, which are located on your left as you walk in on the main track, you will see a gate and will have to climb over it to get into that area. The other known spot for small nuggets in pipe clay are right up the back of the fossicking area, known as New Rush. To access this area, there is a gate just under the high voltage powerlines, park here and walk to the very end of the track, and on your right you will find all the shafts surrounded by white pipe clay. People have been raking down the spoil piles in the past, which is evident from the white clay spread all over the place, if you find an intact shaft with the spoil unraked, it most likely has not been touched. Most of the other areas have abundant ironstone that will drive your 705 nuts, or are very overgrown shallow workings. Keep an eye out for large ******* biting ants, they will latch onto you when you least expect it.
For Jupiter Creek, from most reports, best area in the past has been over to the far west in White Gully. The further north you head (downhill towards Long Gully and the Sluice Dam), the worse the ironstone and hot rocks get, literally hopeless using a vlf there.
Also don't rule out looking for relic buttons and pre-decs, they have been found in both areas as you know from your threepence. I have have found some old buttons on both sites, and plenty of bullets and lead shot.
I still think Mt Crawford offers the best opportunity to find gold, simply due to the size of the fossicking area, more vlf friendly ground mineralisation, and the fact that most people go to the same spot time and time again (Watts Gully), there are plenty of others areas to look, some requiring a bit of a walk to get to.
I might head Jupiter way soon with the Infinium, just for something different -it's prett close to my place.
