I have long used full length frame Pumps, the stroke length gets the Higher compression ratio..
before those munchkin floor pumps were sold.

My hand made Touring Bike has 2 side by side Top tubes , the pump nestles between them.

I have 2 Silca Impero Pumps, They are velcro strapped on , to cure any fall off .

But they are on C&V bikes, not my long distance self supported ones for Touring..

I have a Topeak Morph its inside my Carradice Saddle Bag. on my commuter.



I Thought a Pump Above the top tube would be better than beneath It.

lifting the Touring Bike , by the toptube , invariably dislodges the Pump..

so a rear of the seat tube or paralleling the left seat stay
may be a better pump peg brazing location..

my Koga WTR came with riv nuts under the top tube .. to do that.. an on center clip
came with the pump.
I took the pump off and put it inside the saddle bag .