You have not answered most of the Q's people have asked to get a perspective on how to help you with your Q.
What makes the wood special enough to stabilize with a plastic infusion? Is is spalted, quilted,burl, BE or????
Generally straight grain non figured maple is not going to absorb much "stabilizer" and generally will not have enough value to be worth the effort.
Nor will non dry, (very dry) wood. 6 oz 40lb/ft^3 material = aprox 16 cu in.
1-1/4" x 1-1/4" x 10-1/4", e.g. Or 1 x 1 x 16. etc.
What size is he actually making and how dry are they (MC) before treatment.
for butts, nearly any wood that is dry enough, stabilized enough (both infusions and over the machining process period), & cored where applicable can make a cue. Some are more likely to be attractive or at least interesting than others.
For shafts, wood with the characteristics of Hard maple, ash, good yellow birch, purple heart, would be benchmarks. A dense piece of straight close grain black maple might or might not make an acceptable, or faintly possibly even "exceptional" shaft depending on the dimensions you want. Janka hardness is down from Hard maple, though. But all published figures for natural products like wood are averages or even medians. Meaning there is a range of wood in the same species, some of which likely will be somewhat better and some worse.
smt