... looks a bit odd, but the check rails are still long enough to work: 00sf6_slip_k.png A possible change is to use a shorter switch. Here I have used a 1:20 custom switch instead of the usual 1:24 slip switch. The 1:20 planing is equivalent to a 7ft-6in switch -- well down into industrial sizes, and it shows. But it eases the slip road radius to 65", and makes room for the check rail with only just the corner needing to be removed: 00sf6_slip_k_20sw.png An alternative solution is to change to movable K-crossings (switch-diamond). This keeps the original switch (you might even manage a longer 1:32 switch), and allows the whole thing to be on a curve if necessary with no mis-tracking worries. Movable K-crossings have no check rails, which neatly gets round the problem of finding room for them. The downside is the need for extra point motors: 00sf_dslip6_movablek.png Hope this helps. There isn't an ideal answer -- it's one ...