Yeah, we've been discussing the practicality of the F242 DB1F connect in the Warlock combo thread.
Still super impractical compared to a 3U2 that you can convert for 34% with Soul Steal ender without dealing with F242's 2-frame link just to get the DB1F Amp out, and both do 20% meterless. You can also use the 3U2 as a punish string for a lot more situations, since F2 is 17f and S3 is 10f.
Being + on block is the only benefit so you can use it as a pressure string, but the F2 is a 17f startup and even if you don't get outpoked it's mad easy to Flawless Block so doing it raw is... not smart... and using this for whiff punish with a soul steal ender is objectively worse damage than FF 3U2 since the DB1 Amp connector isn't so limited. You can also make the F3U2 safe by finishing the string out on block confirm (F3U2D2) to push them super far away.
Everyone talking about "the big gap" though is exaggerating, it's not a big gap at all -- 7f and trades with other 7f pokes. Wigy is right. Luckily it sucks mid screen for all those other reasons, tho.