I was reading comments on youtube where a viewer suggested a power feed could be added to the tailstock. The idea was to tie the tailstock to the carriage and engage the powerfeed. Leave the tailstock unlocked and then you could drill under power. Anybody doing this?
I was interested in a power feed drilling capability for the lathe a while ago, and looking at options. I read about this piggy back method, but decided against it. When I eventually got a Multifix QCTP, I ordered up the boring bar holder, and MT3 and MT4 adapter sleeves for it. So now I can spot drill, drill, chamfer, ream, so quickly its amazing. No more dragging the tailstock stock up and down the length of the bed. And now drill or ream at the suggested feeds. And even if you don't use it under power feed, you can still feel how its cutting. I bought one of those IGaging single DRO, and set Origin to the proper center of axis for drilling. Plus you can determine your exact depth of cut if you have a DRO, or a carriage stop/indicator. No more relying on the coarse hash marks on the tailstock spindle.
And I also have an ER40 collet chuck that I can put into the boring bar holder for doing other operations.
Though, I would not try to use a large drill right off the the bat. Spot drill, then I'll drill to depth with 1/4" drill bit (split point), then whatever size you want. I haven't gone larger than 1" and had no issues (after spot drilling and a couple size bits in between.)