Blockages would be the major problem with anything other than the long straight tines of a rake.I think they are quite effective at exposing slug eggs from under damp straw etc (as above). Repeated stubble raking is less compatible with growing cover crops though because obviously you want to get them growing asap. We use ours to spread straw, create a tiny bit of tilth, take over open slots, to cover unburied seed and make a (very) minor contribution to field levelling. We really only do once after combining and drilling. We don't stubble rake at proper drilling to avoid unnecessary soil disturbance which might wake up the black grass. We've bought ours now but I wonder if a modified set of springtines would do the same or a similar job and would've been alot cheaper if bought second hand .
Yes you would have to take some of the tines out to give it any sort of a chanceBlockages would be the major problem with anything other than the long straight tines of a rake.
There's generally a few second hand ones for sale...people think they'll need one, hardly use it and eventually sell it off cheapOne of the most over priced bits of kits farm machinery manufacturers can get away with!
Think of a number,double it,then add a good chunk for good measure,hay pesto, a straw rake.
And yes I've been getting quotes for said machines..