Our fields in Canada are pretty terrible to play on, shale instead of clay makes for some very tricky bounces. The pitching circle is really bad as the dirt inside and around it is so soft there seems to be virtually no way a pitcher can drive off the mound without disturbing a lot of dirt. Our best pitchers with a toe drag will create a very large trough in front of the rubber and most pitching rubbers have very large "holes" in front where the pitches drive toe presses in. Just looking for some tips on what can be done to make the area in front of the pitching rubber firmer, we don't play at the same diamond all the time so I don't want to go and dig up the pitching circle to put Bricks down to make it firmer if we only play there 1-2 times a year. Any help for what we may be able to do on a travelling basis would be greatly appreciated.