Indeed.
Most airlines would obviously rather not hire two people on part time due to training overheads but those of us who genuinely benefit from such arrangements, and I know this will be controversial, would gladly cover those costs. I know many will wheep at hearing this and it is a slippery road (possibly, unless enshrined in union agreement) but for me at least, it's more important I'm regularly practicing my other trade than it is to lose a couple of grand on training expenses.
Incoming!