The flux tool handler appears to be broken due to recent RA updates; I will fix this.
However, things like the IC2 drill, MPS glove, and similar are not supported.
The main problem is that GeoStrata needs special "canHarvest" code, as the normal way of "harvest level" and "block hardness" is ID-specific, and all of the GeoStrata rocks (except for Opal, which did not exist at the time of writing the hardness code) are the same ID. I thus had to use a custom handler. This is fine, but it means I must then check if the currently held tool is a valid mining item (in order to obtain drops).
To do this, I check "item.canBlockHarvest(Block)". Basically, that function returns true if and only if the item in question can obtain drops from the given block. GeoStrata supplies vanilla ores as tests (iron ore for stone pick, etc). However, MPS gloves (and other mod items) return false for every case, causing the test to fail. While it is possible to hardcode handlers to get around this, as I did for TiC and RA, this quickly gets messy and takes a lot of time to maintain, and it breaks as soon as those mods update.
Because it is a minimal effort on MPS's end (override the function and make it return true where appropriate), I have left it to her. However, the MPS page clearly states "Do not come to me about bugs...I do not want to hear it", so compatibility is unlikely.