I've just had to cut some rebates and so used my Veritas skewed rebate plane.
It gets my nomination as the most difficult tool to become proficient with. This is no reflection on the plane itself as it is a precisely and well engineered bit of kit. The reason I find it a challenge is that there seem to be more factors constantly in play than is the case with most tools . You've to make sure that it's toed in properly, then there are the two tasks for the hands (never a problem with the plough plane for some reason).
I got the desired results with it but had to go slowly, steadily and with care. What I found to be the key factor was to mark the depth of cut on the wood at the ends of the cut. This is nothing to do with achieving the desired depth (you adjust the gadget on the plane for that) but rather to check that the rebate is level. I find that I tend to cut down on the inside of the cut, so regular comparison with the marked line showed where I'd been inadvertently been tilting the plane inwards and that I had to readjust. I got there in the end with a couple of bang on rebates, each of 3/8" depth but I had to correct the tilt four times on one of them.
So all in all, I reckon it's an excellent tool but it will not suffer less than exact use.
It gets my nomination as the most difficult tool to become proficient with. This is no reflection on the plane itself as it is a precisely and well engineered bit of kit. The reason I find it a challenge is that there seem to be more factors constantly in play than is the case with most tools . You've to make sure that it's toed in properly, then there are the two tasks for the hands (never a problem with the plough plane for some reason).
I got the desired results with it but had to go slowly, steadily and with care. What I found to be the key factor was to mark the depth of cut on the wood at the ends of the cut. This is nothing to do with achieving the desired depth (you adjust the gadget on the plane for that) but rather to check that the rebate is level. I find that I tend to cut down on the inside of the cut, so regular comparison with the marked line showed where I'd been inadvertently been tilting the plane inwards and that I had to readjust. I got there in the end with a couple of bang on rebates, each of 3/8" depth but I had to correct the tilt four times on one of them.
So all in all, I reckon it's an excellent tool but it will not suffer less than exact use.