I disagree, fitting the legs there will be too far in and in effect "shorten" the legs so it will tilt back too far. Also, when you use the legs you'll be screwing and unscrewing the chassis bolts each time. I just fitted tilt back legs to my new Fender Frontman 212r. Use the chassis side bolt holes to fit The STOPS not the legs. Remove the chassis bolts, slip the stops over them and re-fit them. Tilt the amp back to the point where it wants to fall back itself, lean it on something (I used a guitar stand), offer up the legs so they hit the stops near the top and the floor at the bottom. Mark where your holes will go. Undo all the chassis screws (four on the top and the two you used to fit the stops), drop the amplifier section (you'll have to disconnect the reverb tank but not the speakers), drill two 5mm holes and bolt your legs on using bolts and washers provided with the split washer on the inside. Then refit the amp section and refit the stops using the black screws that were originally there. Job done, looks fab, works great!