federal and state securities laws, fraud and other wrongs. The District Court for the Northern District of Alabama transferred the cause to the Southern District of Alabama under 28 U.S.C. § 1404(a). The plaintiffs seek to review that order by interlocutory appeal under 28 U.S.C. § 1292(b) and by a petition for writ of mandamus against the District Judge who entered the transfer order directing him to retain jurisdiction of the cause.1
This court granted permission for a § 1292(b) appeal from the transfer order but reserved ultimate determination of the appropriateness of the appeal for consideration along with the merits. We conclude that leave to appeal was improvidently granted. Also we deny the petition for mandamus.
To attempt to get within § 1292 (b), the plaintiffs grasp for a controlling question of law as to which there is substantial ground for a difference of opinion by contending that a plaintiffs choice of forum should always be respected in actions brought under the Securities Act of 1933 and the Securities Act of 1934. Similar contentions have been rejected in Ex Parte Collett, 337 U.S. 55, 69 S.Ct. 944, 93 L.Ed. 1207 (1949) and United States v. National City Lines, Inc., 337 U.S. 78, 69 S.Ct. 955, 93 L.Ed. 1226 (1949). In Securities Act cases venue has been transferred to other districts in Schneider v. Sears, 265 F.Supp. 257 (S.D.N.Y.1967); Axe-Houghton Fund A, Inc. v. Atlantic Research Corp., 227 F.Supp. 521 (S.D.N.Y. 1964); Sher v. Johnston, 216 F.Supp. 123 (S.D.N.Y.1963); Polaroid Corp. v. Casselman, 213 F.Supp. 379 (S.D.N.Y. 1962).
The plaintiff’s statutory privilege of choosing his forum is a factor, held in varying degrees of esteem, to be weighed against other factors in determining the convenient forum.
Time, Inc. v. Manning, 366 F.2d 690 (5th Cir. 1966). That factor is not controlling. Ultimately the trial judge must use his discretion.2
This court has used the procedure of § 1292(b) to review both questions of law3 and the discretion of the trial, judge in transfer eases. But we have not squarely adjudicated the propriety of review of discretion under § 1292(b). In Ex parte Chas. Pfizer & Co., Inc., 225 F.2d 720 (5th Cir. 1955), a mandamus ease, without referring to § 1292(b), we said that a transfer order was interlocutory and not appealable. We invited certification in Ex parte Deepwater Exploration Co., 260 F.2d 546 (5th Cir. 1958) but the District Court declined on grounds it was not an available procedure, Deepwater Exploration Co. v. Andrew Weir Ins. Co., 167 F.Supp. 185 (E.D.La.1958). Subsequently we issued another invitation in In re Humble Oil & Refining Co., 306 F.2d 567 (5th Cir. 1962), and this time it was accepted, Humble Oil & Refining Co. v. Bell Marine Service, Inc., 321 F.2d 53 (5th Cir. 1963). In Humble II we recognized that the question whether the District Court opinion in Deepwater correctly stated the law would have to await “a proper case on another day.” Subsequently in Time, Inc. v. Manning, supra, we affirmed the District Judge’s denial of a discretionary transfer, considering it along with a jurisdictional issue clearly appealable under § 1292(b), without consideration of the independent availability of such review. The “proper case on another day” is now at hand. Presumably it was with this thought in mind that the panel which granted leave
1
I would assume that an identifiable question of law, such as jurisdiction in the transferor or transferee court could still be certified and reviewed under 1292 (b). See, e. g., Blaski v. Hoffman, 5 Cir., 1958, 260 F.2d 317, aff’d, 1958, 363 U.S. 335, 80 S.Ct. 1084, 4 L.Ed.2d 1254; Continental Grain Co. v. Federal Barge Bines, Inc., 5 Cir., 1959, 268 F.2d 240, 1959 A.M.C. 2158, aff’d., 1960, 364 U.S. 19, 80 S.Ct. 1470, 4 L.Ed.2d 1540. While this lessens the Court’s retreat I am at a loss to understand how that “non-diseretionary” law point makes it any more or less “a controlling issue of law” when the real question is whether the yet untried case is or is not to be transferred and thereafter tried.
2
This was in the old days, good or bad, as one looks at the subsequent integration of Civil and Admiralty Rules, see 39 F.R.D. 69.
3
28 U.S.C. § 1292 Supp.).