An apron plane will just cause you issues with surfaces that you are trying to joint it is just possible to prep a surface ready for jointing with a no. 4 bailey pattern smoothing plane but the attention to detail has to be spot on and you have to be well practiced. The shortest plane I would ever use to prep edges for jointing is a 5 1/2 bailey pattern (jack plane) and it's also what I would recommend for people who are looking to refine their skills. It is tempting to use a 6, 7 or even 8 but the extra sole length on these planes actually start to present issues as expansion and contraction with changes in temperature can cause the sole to bow slightly.
An apron plane will just cause you issues with surfaces that you are trying to joint it is just possible to prep a surface ready for jointing with a no. 4 bailey pattern smoothing plane but the attention to detail has to be spot on and you have to be well practiced. The shortest plane I would ever use to prep edges for jointing is a 5 1/2 bailey pattern (jack plane) and it's also what I would recommend for people who are looking to refine their skills. It is tempting to use a 6, 7 or even 8 but the extra sole length on these planes actually start to present issues as expansion and contraction with changes in temperature can cause the sole to bow slightly.