Don't ever top a LowRyder or other autoflower as one member noted.
When you top any strain, you have to wait for it to recover before flowering.
How well she recovers, into what sort of plant, and how long it takes are all strain dependent.
A branchy leggy plant is easy to deal with after topping, because you can bend the new growth any which way. Blueberry is nice for that.
A real squatter is not so much fun to top. Fat, stocky indicas that set really short internodes and never grow very tall will be harder to keep a reasonable shape- meaning giving some air flow through the plant- and will take longer to give enough branch length to bend or train. You may have to stretch them artificially by raising the lights when new growth appears.
For example, I always top my Power Plants, OGKush, Toxic Lemon, and FoxyFuel, and never top my SourBubble, Blockhead, Bogglegum, or Black Indica.